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Lot 439

A 4.01 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in ...

A 4.01 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct yellow gold, set with a round brilliant cut diamond of 4.01 carats, the band accented by further round brilliant cut diamonds, partial British hallmarks, size M / 6.25, 7.1g. 
A 4.01 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct yellow gold, set with a round brilliant cut diamond of 4.01 carats, the band accented by further round brilliant cut diamonds, partial British hallmarks, size M / 6.25, 7.1g. 

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A 4.01 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct yellow gold, set with a round brilliant cut diamond of 4.01 carats, the band accented by further round brilliant cut diamonds, partial British hallmarks, size M / 6.25, 7.1g. 
A 4.01 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct yellow gold, set with a round brilliant cut diamond of 4.01 carats, the band accented by further round brilliant cut diamonds, partial British hallmarks, size M / 6.25, 7.1g. 

Lot 439

A 4.01 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in ...

Estimate £25,000 - £35,000

Description

A 4.01 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct yellow gold, set with a round brilliant cut diamond of 4.01 carats, the band accented by further round brilliant cut diamonds, partial British hallmarks, size M / 6.25, 7.1g. 

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Estimated Shipping Costs


General delivery information available from the auctioneer

We are pleased to offer a comprehensive shipping service, in which all items are sent insured to their full value. Our shipping costs are as follows:

(i) Domestic UK packages are charged according to the below pricing bands, dependent on the invoice amount:

Band A - £1 - £2,500. Cost is £20.00
Band A - £2,501 - £4,000. Cost is £30.00
Band B - £4,001 - £6,000 Cost is £40.00
Band C- £6,001 - £8,000 Cost is £50.00
Band D - £8,001 - £10,000 Cost is £60.00
Band E - £10,001 - £15,000 Cost is £70.00
Band F - £15,001 and above Cost is £80.00

International Packages are charged as follows:

i) Up to £250 in value charged at £30.00 per package;
ii) In excess of £250 in value charged at £40.00 per package plus insurance at a rate of 1% of the total purchase price.

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LOT 1

A RUBY AND DIAMOND CLUSTER RING in 14ct yellow gold and silver, set with an oval cut ruby of 1.07 carats in a cluster of old cut diamonds, the diamonds all totalling 1.5-1.8 carats, full British hallmarks, size P / 7.75, 5.0g. 

A RUBY AND DIAMOND CLUSTER RING in 14ct yellow gold and silver, set with an oval cut ruby of 1.07 carats in a cluster of old cut diamonds, the diamonds all totalling 1.5-1.8 carats, full British hallmarks, size P / 7.75, 5.0g. 

Estimate £1,500 - £2,500

LOT 5

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut emerald of approximately 1.25 carats in a cluster of round brilliant cut diamonds, the shoulders accented by further round brilliant cut diamonds, stamped 18CT, size N1/2

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut emerald of approximately 1.25 carats in a cluster of round brilliant cut diamonds, the shoulders accented by further round brilliant cut diamonds, stamped 18CT, size N1/2

Estimate £1,500 - £2,500

LOT 8

A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut sapphire of 15.03 carats in a cluster of round brilliant cut diamonds totalling 1.5-1.7 carats, no assay marks, size M1/2 / 6.25, 13.7g. Accompanied by a gemmological report fr

A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut sapphire of 15.03 carats in a cluster of round brilliant cut diamonds totalling 1.5-1.7 carats, no assay marks, size M1/2 / 6.25, 13.7g. Accompanied by a gemmological report fr

Estimate £15,000 - £25,000

LOT 10

AN ART DECO SAPPHIRE AND DIAMOND RING set with an old cut diamond of 1.54 carats within a pierced border set with old cut diamonds and step cut sapphires, rubbed French assay marks, size Q / 8, 4.4g.

AN ART DECO SAPPHIRE AND DIAMOND RING set with an old cut diamond of 1.54 carats within a pierced border set with old cut diamonds and step cut sapphires, rubbed French assay marks, size Q / 8, 4.4g.

Estimate £6,000 - £8,000

LOT 12

A RUBY AND DIAMOND THREE STONE RING in platinum and 18ct white gold, set with a round cut ruby of approximately 1.50 carats between two old cut diamonds both totalling 1.2-1.3 carats, the scrolling band set with rose cut diamonds, A. H & S maker's ma

A RUBY AND DIAMOND THREE STONE RING in platinum and 18ct white gold, set with a round cut ruby of approximately 1.50 carats between two old cut diamonds both totalling 1.2-1.3 carats, the scrolling band set with rose cut diamonds, A. H & S maker's ma

Estimate £2,000 - £3,000

LOT 15

A VINTAGE PINK TOURMALINE AND DIAMOND CLUSTER RING, CIRCA 1985 in yellow gold, set with a cushion cut pink tourmaline of approximately 3.00 carats within a cluster of round brilliant cut diamonds, the diamonds all totalling 1.0-1.2 carats, no assay m

A VINTAGE PINK TOURMALINE AND DIAMOND CLUSTER RING, CIRCA 1985 in yellow gold, set with a cushion cut pink tourmaline of approximately 3.00 carats within a cluster of round brilliant cut diamonds, the diamonds all totalling 1.0-1.2 carats, no assay m

Estimate £3,000 - £5,000

LOT 17

AN ANTIQUE VICTORIAN DIAMOND RING, 19TH CENTURY in yellow gold and silver, set with two rows of old cut diamonds to scroll engraved shoulders, no assay marks, size L / 5.75, 2.0g. 

AN ANTIQUE VICTORIAN DIAMOND RING, 19TH CENTURY in yellow gold and silver, set with two rows of old cut diamonds to scroll engraved shoulders, no assay marks, size L / 5.75, 2.0g. 

Estimate £1,500 - £2,500

LOT 21

AN EMERALD AND DIAMOND NAVETTE RING in yellow gold, the navette face set with alternating rows of cushion cut emeralds and old cut diamonds, no assay marks, size O / 7.25, 3.8g. 

AN EMERALD AND DIAMOND NAVETTE RING in yellow gold, the navette face set with alternating rows of cushion cut emeralds and old cut diamonds, no assay marks, size O / 7.25, 3.8g. 

Estimate £600 - £800

LOT 24

MITZI CUNLIFFE FOR CARTIER, A VINTAGE EMERALD DRESS RING in 18ct yellow gold, set with a cabochon cut emerald of approximately 12.50 carats, to a stylised band, with an inner sizing band partly obscuring marks, signed Mitzi Cunliffe and Cartier 1988,

MITZI CUNLIFFE FOR CARTIER, A VINTAGE EMERALD DRESS RING in 18ct yellow gold, set with a cabochon cut emerald of approximately 12.50 carats, to a stylised band, with an inner sizing band partly obscuring marks, signed Mitzi Cunliffe and Cartier 1988,

Estimate £8,000 - £12,000

LOT 25

A VINTAGE RUBELLITE TOURMALINE AND DIAMOND COCKTAIL RING, CIRCA 1985 in 18ct yellow gold, set with a cabochon rubellite tourmaline of approximately 23.00 carats, accented by a round brilliant cut diamond of approximately 0.21 carats, signed B, stampe

A VINTAGE RUBELLITE TOURMALINE AND DIAMOND COCKTAIL RING, CIRCA 1985 in 18ct yellow gold, set with a cabochon rubellite tourmaline of approximately 23.00 carats, accented by a round brilliant cut diamond of approximately 0.21 carats, signed B, stampe

Estimate £5,000 - £7,000

LOT 30

A SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct yellow gold, set with an old mine cut diamond of 4.65 carats, French assay marks, size P / 7.75, 5.4g.

A SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct yellow gold, set with an old mine cut diamond of 4.65 carats, French assay marks, size P / 7.75, 5.4g.

Estimate £15,000 - £25,000

LOT 32

A DIAMOND GYPSY RING in 18ct yellow and white gold, set with an old cut diamond of 1.00 carats, stamped 750, size P / 7.75, 5.3g. 

A DIAMOND GYPSY RING in 18ct yellow and white gold, set with an old cut diamond of 1.00 carats, stamped 750, size P / 7.75, 5.3g. 

Estimate £2,000 - £3,000

LOT 36

A RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut ruby of approximately 7.05 carats in a cluster of old cut diamonds, the diamonds totalling 1.0-1.5 carats, stamped 18ct, size N / 6.75, 8.4g. 

A RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut ruby of approximately 7.05 carats in a cluster of old cut diamonds, the diamonds totalling 1.0-1.5 carats, stamped 18ct, size N / 6.75, 8.4g. 

Estimate £5,000 - £7,000

LOT 39

A DIAMOND ENGAGEMENT RING in 18ct white gold, set with a round brilliant cut diamond of 2.10 carats in a cluster of round brilliant cut diamonds, further diamonds to the bifurcated band, stamped 750, size M / 6.25, 5.1g. 

A DIAMOND ENGAGEMENT RING in 18ct white gold, set with a round brilliant cut diamond of 2.10 carats in a cluster of round brilliant cut diamonds, further diamonds to the bifurcated band, stamped 750, size M / 6.25, 5.1g. 

Estimate £6,000 - £8,000

LOT 41

A SAPPHIRE AND DIAMOND TOI ET MOI RING in 18ct yellow and white gold, set with a round cut sapphire of 2.10 carats and a round brilliant cut diamond of 1.54 carats, accented by further single cut diamonds, no assay marks, size O / 7, 5.1g.

A SAPPHIRE AND DIAMOND TOI ET MOI RING in 18ct yellow and white gold, set with a round cut sapphire of 2.10 carats and a round brilliant cut diamond of 1.54 carats, accented by further single cut diamonds, no assay marks, size O / 7, 5.1g.

Estimate £8,000 - £12,000

LOT 44

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a round brilliant cut diamond of approximately 0.80 carats, no assay marks, size L / 5.75, 3.9g. 

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a round brilliant cut diamond of approximately 0.80 carats, no assay marks, size L / 5.75, 3.9g. 

Estimate £800 - £1,200

LOT 46

A VINTAGE RUBY AND DIAMOND CHECKERBOARD RING in yellow gold, the ring set with three rows of alternating cushion cut rubies and old cut diamonds, the rubies all totalling 1.8-2.0 carats, the diamonds all totalling 2.0-2.2 carats, no assay marks, size

A VINTAGE RUBY AND DIAMOND CHECKERBOARD RING in yellow gold, the ring set with three rows of alternating cushion cut rubies and old cut diamonds, the rubies all totalling 1.8-2.0 carats, the diamonds all totalling 2.0-2.2 carats, no assay marks, size

Estimate £2,000 - £3,000

LOT 48

A DIAMOND AND PEARL TOI ET MOI RING in 14ct yellow gold, set with a round brilliant cut diamond of approximately 0.67 carats and a pearl of 6.8mm, to a stylised band, full British hallmarks, size O1/2 / 7.5, 5.5g. 

A DIAMOND AND PEARL TOI ET MOI RING in 14ct yellow gold, set with a round brilliant cut diamond of approximately 0.67 carats and a pearl of 6.8mm, to a stylised band, full British hallmarks, size O1/2 / 7.5, 5.5g. 

Estimate £600 - £800

LOT 55

A COLOMBIAN EMERALD AND DIAMOND RING in yellow and white gold, set with an octagonal step cut emerald of 1.65 carats in a border of round brilliant cut diamonds, no assay marks, size L1/2 / 6, 4.0g. Accompanied by a gemmological report stating that t

A COLOMBIAN EMERALD AND DIAMOND RING in yellow and white gold, set with an octagonal step cut emerald of 1.65 carats in a border of round brilliant cut diamonds, no assay marks, size L1/2 / 6, 4.0g. Accompanied by a gemmological report stating that t

Estimate £3,000 - £5,000

LOT 58

A YELLOW DIAMOND, PINK DIAMOND AND WHITE DIAMOND SWEETHEART RING in 18ct yellow gold, set with a heart shaped brilliant cut fancy light yellow diamond of 1.23 carats in a border of round cut pink diamonds, surmounted by a ribbon tied in a bow, set wi

A YELLOW DIAMOND, PINK DIAMOND AND WHITE DIAMOND SWEETHEART RING in 18ct yellow gold, set with a heart shaped brilliant cut fancy light yellow diamond of 1.23 carats in a border of round cut pink diamonds, surmounted by a ribbon tied in a bow, set wi

Estimate £2,500 - £3,500

LOT 61

A DIAMOND HALF HOOP RING in yellow gold, set with four principal old cut diamonds of approximately 1.36, 1.30, 0.86 and 0.83 carats, accented by single cut diamonds, the diamonds totalling 4.5-4.7 carats, stamped Or, size R / 8.75, 10.1g.

A DIAMOND HALF HOOP RING in yellow gold, set with four principal old cut diamonds of approximately 1.36, 1.30, 0.86 and 0.83 carats, accented by single cut diamonds, the diamonds totalling 4.5-4.7 carats, stamped Or, size R / 8.75, 10.1g.

Estimate £10,000 - £15,000

LOT 63

BOUCHERON, A RETRO EMERALD AND DIAMOND BOMBE RING in 18ct rose gold and platinum, the domed face set with three octagonal step cut emeralds totalling 1.2-1.4 carats, with stylised edges set with old cut diamonds, signed Boucheron Paris, French assay

BOUCHERON, A RETRO EMERALD AND DIAMOND BOMBE RING in 18ct rose gold and platinum, the domed face set with three octagonal step cut emeralds totalling 1.2-1.4 carats, with stylised edges set with old cut diamonds, signed Boucheron Paris, French assay

Estimate £2,500 - £3,500

LOT 66

A PERIDOT AND DIAMOND RING in 18ct white gold, set with an octagonal step cut peridot of approximately 2.18 carats, the tapered shoulders set with baguette and round brilliant cut diamonds, stamped 18k, size N / 6.75, 4.7g.

A PERIDOT AND DIAMOND RING in 18ct white gold, set with an octagonal step cut peridot of approximately 2.18 carats, the tapered shoulders set with baguette and round brilliant cut diamonds, stamped 18k, size N / 6.75, 4.7g.

Estimate £800 - £1,200

LOT 68

NO RESERVE- AN AQUAMARINE AND DIAMOND RING set with an oval cut aquamarine of 3.90 carats in a border of round brilliant cut diamonds, the band set with further round brilliant cut diamonds, no assay marks, size Q / 8, 6.6g. 

NO RESERVE- AN AQUAMARINE AND DIAMOND RING set with an oval cut aquamarine of 3.90 carats in a border of round brilliant cut diamonds, the band set with further round brilliant cut diamonds, no assay marks, size Q / 8, 6.6g. 

Estimate £2,500 - £3,500

LOT 69

A FINE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with an octagonal cut sapphire of 5.98 carats in a border of round brilliant cut diamonds, the stepped shoulders set with further round brilliant cut diamonds, partial British hallmarks

A FINE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with an octagonal cut sapphire of 5.98 carats in a border of round brilliant cut diamonds, the stepped shoulders set with further round brilliant cut diamonds, partial British hallmarks

Estimate £5,000 - £7,000

LOT 71

A DIAMOND ENGAGEMENT RING in platinum, set with an oval cut diamond of 4.02 carats between two trapezoid cut diamonds totalling 1.4-1.6 carats, stamped PT, size N / 6.75, 6.6g.

A DIAMOND ENGAGEMENT RING in platinum, set with an oval cut diamond of 4.02 carats between two trapezoid cut diamonds totalling 1.4-1.6 carats, stamped PT, size N / 6.75, 6.6g.

Estimate £15,000 - £25,000

LOT 74

NO RESERVE - A DIAMOND ETERNITY RING set all round with a row of marquise cut diamonds all totalling 4.5-4.6 carats, no assay marks, size L / 6, 5.1g.

NO RESERVE - A DIAMOND ETERNITY RING set all round with a row of marquise cut diamonds all totalling 4.5-4.6 carats, no assay marks, size L / 6, 5.1g.

Estimate £2,000 - £3,000

LOT 79

AN EMERALD AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut emerald in a cluster of round brilliant cut diamonds, no assay marks, size N1/2 / 7, 2.6g. 

AN EMERALD AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut emerald in a cluster of round brilliant cut diamonds, no assay marks, size N1/2 / 7, 2.6g. 

Estimate £600 - £800

LOT 82

AN ANTIQUE DIAMOND AND PEARL TOI ET MOI RING, EARLY 20TH CENTURY in yellow gold, the ring set with an old cut diamond of approximately 0.34 carats and a pearl of 5.2mm, accented by rose cut diamonds, size K1/2 / 5.5, 2.6g. 

AN ANTIQUE DIAMOND AND PEARL TOI ET MOI RING, EARLY 20TH CENTURY in yellow gold, the ring set with an old cut diamond of approximately 0.34 carats and a pearl of 5.2mm, accented by rose cut diamonds, size K1/2 / 5.5, 2.6g. 

Estimate £800 - £1,200

LOT 85

A RUBY AND DIAMOND CLUSTER RING in yellow gold, set with three oval and round cut rubies in a cluster border of round brilliant cut diamonds, no assay marks, size L1/2 / 6, 4.7g. 

A RUBY AND DIAMOND CLUSTER RING in yellow gold, set with three oval and round cut rubies in a cluster border of round brilliant cut diamonds, no assay marks, size L1/2 / 6, 4.7g. 

Estimate £1,000 - £1,500

LOT 87

AN ANTIQUE DIAMOND NAVETTE RING in yellow gold, the navette face set with rose cut diamonds, marked indistinctly, size P / 7.5, 5.9g.

AN ANTIQUE DIAMOND NAVETTE RING in yellow gold, the navette face set with rose cut diamonds, marked indistinctly, size P / 7.5, 5.9g.

Estimate £1,000 - £1,500

LOT 91

A STAR SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a cabochon star sapphire of approximately 5.50 carats, accented by six round brilliant cut diamonds, stamped 18K, size N / 6.75, 9.8g.

A STAR SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a cabochon star sapphire of approximately 5.50 carats, accented by six round brilliant cut diamonds, stamped 18K, size N / 6.75, 9.8g.

Estimate £800 - £1,200

LOT 94

A RUBY AND DIAMOND RING set to the centre with an oval cut ruby of approximately 1.26 carats, the band accented by baguette and single cut diamonds, no assay marks, size M / 6, 8.0g. 

A RUBY AND DIAMOND RING set to the centre with an oval cut ruby of approximately 1.26 carats, the band accented by baguette and single cut diamonds, no assay marks, size M / 6, 8.0g. 

Estimate £1,200 - £1,600

LOT 97

A RUBY HALF ETERNITY RING in 18ct yellow gold, the band half set with a row of step cut rubies, stamped 750, size M / 6, 2.0g.

A RUBY HALF ETERNITY RING in 18ct yellow gold, the band half set with a row of step cut rubies, stamped 750, size M / 6, 2.0g.

Estimate £250 - £350

LOT 101

A VINTAGE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with an oval cut sapphire of approximately 2.00 carats, accented by round brilliant cut diamonds and round cut sapphires, full British hallmarks for Sheffield 1985, size O /

A VINTAGE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with an oval cut sapphire of approximately 2.00 carats, accented by round brilliant cut diamonds and round cut sapphires, full British hallmarks for Sheffield 1985, size O /

Estimate £2,500 - £3,500

LOT 104

AN EMERALD AND DIAMOND DRESS RING in white and yellow gold, set with a step cut emerald of 1.28 carats in a border of round brilliant cut diamonds to an openwork band set throughout with round brilliant cut diamonds, stamped Au750, size O1/2 / 7.5, 8

AN EMERALD AND DIAMOND DRESS RING in white and yellow gold, set with a step cut emerald of 1.28 carats in a border of round brilliant cut diamonds to an openwork band set throughout with round brilliant cut diamonds, stamped Au750, size O1/2 / 7.5, 8

Estimate £2,000 - £3,000

LOT 106

A COLOMBIAN EMERALD AND DIAMOND RING in platinum and yellow gold, set with an octagonal step cut emerald of 5.13 carats between two trilliant cut diamonds totalling 0.6-0.8 carats, stamped PLAT, size N / 7.75, 7.3g. Accompanied by a gemmological repo

A COLOMBIAN EMERALD AND DIAMOND RING in platinum and yellow gold, set with an octagonal step cut emerald of 5.13 carats between two trilliant cut diamonds totalling 0.6-0.8 carats, stamped PLAT, size N / 7.75, 7.3g. Accompanied by a gemmological repo

Estimate £4,000 - £6,000

LOT 109

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a cushion cut sapphire of 7.98 carats accented by baguette cut diamonds, stamped 750, size M / 6, 4.3g. Accompanied by a gemmological report stating that the sapphire is of Ceylo

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a cushion cut sapphire of 7.98 carats accented by baguette cut diamonds, stamped 750, size M / 6, 4.3g. Accompanied by a gemmological report stating that the sapphire is of Ceylo

Estimate £8,000 - £12,000

LOT 111

A RUBY AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut ruby of 2.38 carats in a border of round and baguette cut diamonds, the diamonds all totalling 1.0-1.4 carats, stamped 750, size O / 7.25, 4.3g.

A RUBY AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut ruby of 2.38 carats in a border of round and baguette cut diamonds, the diamonds all totalling 1.0-1.4 carats, stamped 750, size O / 7.25, 4.3g.

Estimate £1,000 - £1,500

LOT 113

AN AQUAMARINE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut aquamarine of approximately 8.10 carats in a cluster of round cut diamonds all totalling 1.8-2.0 carats, no assay marks, size O / 7, 8.3g.

AN AQUAMARINE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut aquamarine of approximately 8.10 carats in a cluster of round cut diamonds all totalling 1.8-2.0 carats, no assay marks, size O / 7, 8.3g.

Estimate £2,500 - £3,500

LOT 117

A VINTAGE DIAMOND CLUSTER RING in 18ct yellow gold, set with a cluster of round brilliant cut diamonds, the diamonds totalling 1.8-2.0 carats, full British hallmarks for Edinburgh 1988, size L1/2 / 6, 4.6g. 

A VINTAGE DIAMOND CLUSTER RING in 18ct yellow gold, set with a cluster of round brilliant cut diamonds, the diamonds totalling 1.8-2.0 carats, full British hallmarks for Edinburgh 1988, size L1/2 / 6, 4.6g. 

Estimate £4,000 - £6,000

LOT 118

A RETRO FRENCH DIAMOND DRESS RING in 18ct yellow gold and platinum, the stylised head set with a row of graduated old cut diamonds, French assay marks, size J1/2 / 5, 11.1g.

A RETRO FRENCH DIAMOND DRESS RING in 18ct yellow gold and platinum, the stylised head set with a row of graduated old cut diamonds, French assay marks, size J1/2 / 5, 11.1g.

Estimate £500 - £700

LOT 122

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a cushion cut sapphire of 6.91 carats in a border of round brilliant and baguette cut diamonds, the band accented by further baguette cut diamonds, the diamonds totalling 1.20 carats, sta

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a cushion cut sapphire of 6.91 carats in a border of round brilliant and baguette cut diamonds, the band accented by further baguette cut diamonds, the diamonds totalling 1.20 carats, sta

Estimate £4,000 - £6,000

LOT 124

A DIAMOND FIVE STONE RING in platinum, set with a row of old mine cut diamonds totalling 2.5-3.0 carats, stamped PT, size O / 7.25, 4.8g.

A DIAMOND FIVE STONE RING in platinum, set with a row of old mine cut diamonds totalling 2.5-3.0 carats, stamped PT, size O / 7.25, 4.8g.

Estimate £2,500 - £3,500

LOT 126

A RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut ruby of 2.49 carats in a border of round brilliant and baguette cut diamonds, further round brilliant cut diamonds accenting the band, the diamonds totalling 0.96 carats, stampe

A RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut ruby of 2.49 carats in a border of round brilliant and baguette cut diamonds, further round brilliant cut diamonds accenting the band, the diamonds totalling 0.96 carats, stampe

Estimate £2,000 - £3,000

LOT 129

A COLOMBIAN EMERALD AND DIAMOND RING in platinum, set with a pear cut emerald of 5.99 carats in a border of round brilliant cut diamonds, the gallery and band set with further diamonds, partial British hallmarks, size M / 6.25, 8.7g. Accompanied by a

A COLOMBIAN EMERALD AND DIAMOND RING in platinum, set with a pear cut emerald of 5.99 carats in a border of round brilliant cut diamonds, the gallery and band set with further diamonds, partial British hallmarks, size M / 6.25, 8.7g. Accompanied by a

Estimate £3,000 - £5,000

LOT 133

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with an oval cut diamond of 0.51 carats in a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size M / 6.25, 5.0g. Accompanied by a gemmological r

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with an oval cut diamond of 0.51 carats in a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size M / 6.25, 5.0g. Accompanied by a gemmological r

Estimate £2,000 - £3,000

LOT 137

AN ANTIQUE AGATE CAMEO RING in yellow gold, set with an agate cameo carved to depict the bust of a bearded man, no assay marks, size P1/2 / 8, 5.6g.

AN ANTIQUE AGATE CAMEO RING in yellow gold, set with an agate cameo carved to depict the bust of a bearded man, no assay marks, size P1/2 / 8, 5.6g.

Estimate £600 - £800

LOT 139

AN ANTIQUE DIAMOND TOI ET MOI RING, EARLY 20TH CENTURY in yellow gold, set with two old cut diamonds both totalling 1.2-1.3 carats, the band accented by further old cut diamonds, no assay marks, size M / 6.25, 4.5g. 

AN ANTIQUE DIAMOND TOI ET MOI RING, EARLY 20TH CENTURY in yellow gold, set with two old cut diamonds both totalling 1.2-1.3 carats, the band accented by further old cut diamonds, no assay marks, size M / 6.25, 4.5g. 

Estimate £2,000 - £3,000

LOT 141

A VINTAGE UNHEATED RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut ruby of 1.44 carats in a cluster of round brilliant cut diamonds, full British hallmarks for London 1978, size M / 6.25, 3.6g. Accompanied by a gemmological re

A VINTAGE UNHEATED RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut ruby of 1.44 carats in a cluster of round brilliant cut diamonds, full British hallmarks for London 1978, size M / 6.25, 3.6g. Accompanied by a gemmological re

Estimate £2,000 - £3,000

LOT 144

AN ANTIQUE RED SPINEL AND DIAMOND RING, 19TH CENTURY in yellow gold and silver, set with a cushion cut red spinel in a cluster of old cut diamonds, inscribed 'Henry Green', no assay marks, size O1/2 / 7.5, 4.1g. 

AN ANTIQUE RED SPINEL AND DIAMOND RING, 19TH CENTURY in yellow gold and silver, set with a cushion cut red spinel in a cluster of old cut diamonds, inscribed 'Henry Green', no assay marks, size O1/2 / 7.5, 4.1g. 

Estimate £800 - £1,200

LOT 146

AN ANTIQUE VICTORIAN SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a row of alternating round cut sapphires and old cut diamonds, partial British hallmarks for Birmingham 1858, size P / 7.75, 4.2g. 

AN ANTIQUE VICTORIAN SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a row of alternating round cut sapphires and old cut diamonds, partial British hallmarks for Birmingham 1858, size P / 7.75, 4.2g. 

Estimate £800 - £1,200

LOT 148

AN ANTIQUE GEORGIAN GARNET AND PEARL RING in yellow gold, set with a seed pearl in a cluster of flat cut garnets, accented by further flat cut garnets, no assay marks, size I1/2 / 4.5, 1.9g. 

AN ANTIQUE GEORGIAN GARNET AND PEARL RING in yellow gold, set with a seed pearl in a cluster of flat cut garnets, accented by further flat cut garnets, no assay marks, size I1/2 / 4.5, 1.9g. 

Estimate £300 - £500

LOT 151

A PINK AND WHITE DIAMOND BOMBE RING in platinum, the domed face pave set with pink and colourless diamonds in a flower design, the pink diamonds totalling 1.25 carats, the white diamonds totalling 1.12 carats, full British hallmarks, size O / 7.25, 2

A PINK AND WHITE DIAMOND BOMBE RING in platinum, the domed face pave set with pink and colourless diamonds in a flower design, the pink diamonds totalling 1.25 carats, the white diamonds totalling 1.12 carats, full British hallmarks, size O / 7.25, 2

Estimate £2,500 - £3,500

LOT 154

TIFFANY & CO., A DIAMOND RING in 18ct white gold, the bombe face in woven design set with round brilliant cut diamonds, signed Tiffany & Co., full British hallmarks, size N1/2 / 7, 7.0g. 

TIFFANY & CO., A DIAMOND RING in 18ct white gold, the bombe face in woven design set with round brilliant cut diamonds, signed Tiffany & Co., full British hallmarks, size N1/2 / 7, 7.0g. 

Estimate £1,200 - £1,600

LOT 157

AN ORANGE SAPPHIRE ETERNITY RING in 18ct yellow gold, channel set all around with a row of octagonal step cut orange sapphires all totalling 4.0-4.4 carats, stamped 750, size N / 6.5, 2.8g.

AN ORANGE SAPPHIRE ETERNITY RING in 18ct yellow gold, channel set all around with a row of octagonal step cut orange sapphires all totalling 4.0-4.4 carats, stamped 750, size N / 6.5, 2.8g.

Estimate £400 - £600

LOT 159

A DIAMOND FULL ETERNITY RING set all around with a row of graduated old cut diamonds, no assay marks, size N / 6.75, 6.8g.

A DIAMOND FULL ETERNITY RING set all around with a row of graduated old cut diamonds, no assay marks, size N / 6.75, 6.8g.

Estimate £800 - £1,200

LOT 161

AN AQUAMARINE AND DIAMOND RING set with a rectangular step cut aquamarine of approximately 9.10 carats, the stepped shoulders set with round brilliant cut diamonds, no assay marks, size M1/2 / 6.5, 5.8g. 

AN AQUAMARINE AND DIAMOND RING set with a rectangular step cut aquamarine of approximately 9.10 carats, the stepped shoulders set with round brilliant cut diamonds, no assay marks, size M1/2 / 6.5, 5.8g. 

Estimate £1,500 - £2,500

LOT 162

A DIAMOND ETERNITY RING in white gold, the flexible band set with a row of round brilliant cut diamonds all totalling 0.9-1.1 carats, no assay marks, size M / 6, 2.5g.

A DIAMOND ETERNITY RING in white gold, the flexible band set with a row of round brilliant cut diamonds all totalling 0.9-1.1 carats, no assay marks, size M / 6, 2.5g.

Estimate £600 - £800

LOT 164

A FINE RUBY AND DIAMOND BOMBE RING in 18ct white gold, set with a cushion cut ruby of approximately 1.36 carats, the domed body pave set with single cut diamonds, stamped 750, size N / 6.75, 5.8g. 

A FINE RUBY AND DIAMOND BOMBE RING in 18ct white gold, set with a cushion cut ruby of approximately 1.36 carats, the domed body pave set with single cut diamonds, stamped 750, size N / 6.75, 5.8g. 

Estimate £2,500 - £3,500

LOT 166

A FINE DIAMOND DRESS RING the openwork face set throughout with old cut diamonds, no assay marks, size M / 6, 4.2g.

A FINE DIAMOND DRESS RING the openwork face set throughout with old cut diamonds, no assay marks, size M / 6, 4.2g.

Estimate £800 - £1,200

LOT 168

AN EMERALD AND DIAMOND BOMBE RING set with a central row of octagonal step cut emeralds, within a border of round brilliant and tapered baguette cut diamonds, no assay marks, size O / 7, 11.1g.

AN EMERALD AND DIAMOND BOMBE RING set with a central row of octagonal step cut emeralds, within a border of round brilliant and tapered baguette cut diamonds, no assay marks, size O / 7, 11.1g.

Estimate £3,000 - £5,000

LOT 172

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut blue sapphire of 7.02 carats in a border of round cut diamonds, to a bifurcated shank set with further diamonds, the diamonds all totalling 1.4-1.6 carats, stamped 750, size

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut blue sapphire of 7.02 carats in a border of round cut diamonds, to a bifurcated shank set with further diamonds, the diamonds all totalling 1.4-1.6 carats, stamped 750, size

Estimate £4,000 - £6,000

LOT 174

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a central radiant cut diamond of 0.83 carats, within a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size M1/2 / 6.5, 2.9g. Accompanied by

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a central radiant cut diamond of 0.83 carats, within a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size M1/2 / 6.5, 2.9g. Accompanied by

Estimate £3,000 - £5,000

LOT 176

AN EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut emerald of 1.85 carats in a border of round brilliant cut diamonds, with further diamonds to the shoulders, the diamonds all totalling 0.8-1.0 carats, stamped 750, size N1/2 /

AN EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut emerald of 1.85 carats in a border of round brilliant cut diamonds, with further diamonds to the shoulders, the diamonds all totalling 0.8-1.0 carats, stamped 750, size N1/2 /

Estimate £1,200 - £1,600

LOT 178

A DIAMOND FIVE STONE RING in 18ct white gold, set with five round brilliant cut diamonds all totalling 2.0-2.4 carats, stamped 750, size N / 6.75, 4.2g.

A DIAMOND FIVE STONE RING in 18ct white gold, set with five round brilliant cut diamonds all totalling 2.0-2.4 carats, stamped 750, size N / 6.75, 4.2g.

Estimate £1,500 - £2,500

LOT 180

A LAVENDER JADE, ONYX, DIAMOND AND RUBY SALAMANDER DRESS RING in 18ct white gold, set with a polished lavender jadeite jade and a polished onyx with two applied salamander motifs pave set with round brilliant cut diamonds, the eyes set with round cut

A LAVENDER JADE, ONYX, DIAMOND AND RUBY SALAMANDER DRESS RING in 18ct white gold, set with a polished lavender jadeite jade and a polished onyx with two applied salamander motifs pave set with round brilliant cut diamonds, the eyes set with round cut

Estimate £4,000 - £6,000

LOT 182

AN AQUAMARINE AND DIAMOND DRESS RING in 18ct white gold, set with an emerald cut aquamarine of 5.90 carats in a border of princess and round cut diamonds, the diamonds all totalling 0.8-1.2 carats, stamped 750, size N / 6.5, 8.0g.

AN AQUAMARINE AND DIAMOND DRESS RING in 18ct white gold, set with an emerald cut aquamarine of 5.90 carats in a border of princess and round cut diamonds, the diamonds all totalling 0.8-1.2 carats, stamped 750, size N / 6.5, 8.0g.

Estimate £1,200 - £1,600

LOT 184

AN EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut emerald of 4.06 carats within a cluster of round brilliant cut diamonds, accented by pairs of baguette cut diamonds, with further diamonds to the band, stamped 750, size O / 7

AN EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut emerald of 4.06 carats within a cluster of round brilliant cut diamonds, accented by pairs of baguette cut diamonds, with further diamonds to the band, stamped 750, size O / 7

Estimate £3,000 - £5,000

LOT 187

A NATURAL FANCY INTENSE YELLOW DIAMOND RING in 18ct white gold, set with a cushion cut fancy intense yellow diamond of 2.00 carats, in a border of round cut yellow diamonds, with further yellow diamonds to the band, size O1/2 / 7.5, 5.3g. Accompanied

A NATURAL FANCY INTENSE YELLOW DIAMOND RING in 18ct white gold, set with a cushion cut fancy intense yellow diamond of 2.00 carats, in a border of round cut yellow diamonds, with further yellow diamonds to the band, size O1/2 / 7.5, 5.3g. Accompanied

Estimate £6,000 - £8,000

LOT 190

A DIAMOND BOMBE RING in 9ct yellow gold, the domed surface set with round brilliant cut diamonds, full British hallmarks, size T1/2 / 10, 31.1g. 

A DIAMOND BOMBE RING in 9ct yellow gold, the domed surface set with round brilliant cut diamonds, full British hallmarks, size T1/2 / 10, 31.1g. 

Estimate £800 - £1,200

LOT 193

A RUBY, DIAMOND AND ONYX RING in 18ct yellow gold, set with an oval cut ruby of 0.63 carats within a cluster of round cut diamonds, the band set with polished onyx, stamped 750, size M / 6, 13.2g.

A RUBY, DIAMOND AND ONYX RING in 18ct yellow gold, set with an oval cut ruby of 0.63 carats within a cluster of round cut diamonds, the band set with polished onyx, stamped 750, size M / 6, 13.2g.

Estimate £800 - £1,200

LOT 195

A RUBY AND DIAMOND CROSSOVER RING in 18ct yellow gold, terminating in two pear cut rubies, accented by baguette cut diamonds, stamped K18, size K / 5, 4.6g.

A RUBY AND DIAMOND CROSSOVER RING in 18ct yellow gold, terminating in two pear cut rubies, accented by baguette cut diamonds, stamped K18, size K / 5, 4.6g.

Estimate £600 - £800

LOT 196

AN ANTIQUE DIAMOND, PEARL AND ENAMEL MOURNING RING, 18TH CENTURY AND LATER in yellow gold, the oval face set with three old cut diamonds on a blue guilloche enamel background, within a border of white enamel and pearls, the reverse inscribed 'Martha

AN ANTIQUE DIAMOND, PEARL AND ENAMEL MOURNING RING, 18TH CENTURY AND LATER in yellow gold, the oval face set with three old cut diamonds on a blue guilloche enamel background, within a border of white enamel and pearls, the reverse inscribed 'Martha

Estimate £800 - £1,200

LOT 199

AN ANTIQUE YELLOW PASTE AND MARCASITE RING in yellow gold and silver, the navette face set with an oval cut yellow paste accented by rose cut marcasite, French assay marks, size N / 6.5, 5.0g.

AN ANTIQUE YELLOW PASTE AND MARCASITE RING in yellow gold and silver, the navette face set with an oval cut yellow paste accented by rose cut marcasite, French assay marks, size N / 6.5, 5.0g.

Estimate £500 - £700

LOT 202

NO RESERVE - AN EMERALD AND DIAMOND THREE STONE RING in 18ct yellow gold, set with a rectangular step cut emerald between two round brilliant cut diamonds, full British hallmarks, size P / 7, 2.8g. 

NO RESERVE - AN EMERALD AND DIAMOND THREE STONE RING in 18ct yellow gold, set with a rectangular step cut emerald between two round brilliant cut diamonds, full British hallmarks, size P / 7, 2.8g. 

Estimate £300 - £500

LOT 204

A YELLOW SAPPHIRE RING in rose gold, set with an octagonal mixed cut yellow sapphire of 5.87 carats to stylised shoulders, no assay marks, size M / 6.25, 3.9g.

A YELLOW SAPPHIRE RING in rose gold, set with an octagonal mixed cut yellow sapphire of 5.87 carats to stylised shoulders, no assay marks, size M / 6.25, 3.9g.

Estimate £800 - £1,200

LOT 206

AN ANTIQUE MOONSTONE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in yellow gold, set with a cabochon moonstone in a cluster of old cut diamonds, further old cut diamonds accenting the shoulders, no assay marks, size P / 7.75, 3.6g. 

AN ANTIQUE MOONSTONE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in yellow gold, set with a cabochon moonstone in a cluster of old cut diamonds, further old cut diamonds accenting the shoulders, no assay marks, size P / 7.75, 3.6g. 

Estimate £2,500 - £3,500

LOT 210

A VINTAGE SAPPHIRE FIVE STONE RING in yellow gold, set with five cushion cut sapphires all totalling 2.2-2.6 carats, no assay marks, size S / 9, 6.2g. 

A VINTAGE SAPPHIRE FIVE STONE RING in yellow gold, set with five cushion cut sapphires all totalling 2.2-2.6 carats, no assay marks, size S / 9, 6.2g. 

Estimate £600 - £800

LOT 211

AN EMERALD AND DIAMOND RING in 18ct yellow gold, the navette face set with an oval cut emerald accented by round brilliant cut diamonds, stamped 18CT, size N1/2 / 7, 3.2g. 

AN EMERALD AND DIAMOND RING in 18ct yellow gold, the navette face set with an oval cut emerald accented by round brilliant cut diamonds, stamped 18CT, size N1/2 / 7, 3.2g. 

Estimate £800 - £1,200

LOT 213

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with an octagonal step cut sapphire of approximately 1.02 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N / 6.75, 4.1g. 

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with an octagonal step cut sapphire of approximately 1.02 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N / 6.75, 4.1g. 

Estimate £600 - £800

LOT 216

NO RESERVE - AN AMETHYST AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut amethyst in a cluster of single cut diamonds, British hallmarks, size G / 3, 8.1g.

NO RESERVE - AN AMETHYST AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut amethyst in a cluster of single cut diamonds, British hallmarks, size G / 3, 8.1g.

Estimate £500 - £700

LOT 218

AN ANTIQUE DIAMOND CLUSTER RING in 18ct yellow gold, the circular face set with rose cut diamonds, French assay marks, size L / 5.5, 6.1g.

AN ANTIQUE DIAMOND CLUSTER RING in 18ct yellow gold, the circular face set with rose cut diamonds, French assay marks, size L / 5.5, 6.1g.

Estimate £500 - £700

LOT 220

A VINTAGE SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut sapphire of approximately 1.55 carats in a cluster of round brilliant cut diamonds, the diamonds totalling 0.8-1.0 carats, partial British hallmarks, size O / 7.25, 4.6g

A VINTAGE SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut sapphire of approximately 1.55 carats in a cluster of round brilliant cut diamonds, the diamonds totalling 0.8-1.0 carats, partial British hallmarks, size O / 7.25, 4.6g

Estimate £2,000 - £3,000

LOT 222

A FRENCH AMETHYST, AQUAMARINE AND PINK TOURMALINE COCKTAIL RING in 18ct yellow gold, set with a central octagonal step cut amethyst, the band set with alternating cabochon aquamarines and pink tourmalines, French assay marks, size K / 5.25, 51.4g.

A FRENCH AMETHYST, AQUAMARINE AND PINK TOURMALINE COCKTAIL RING in 18ct yellow gold, set with a central octagonal step cut amethyst, the band set with alternating cabochon aquamarines and pink tourmalines, French assay marks, size K / 5.25, 51.4g.

Estimate £2,000 - £2,500

LOT 224

AN AMETHYST DRESS RING in 18ct rose gold, set with a fancy cut amethyst in a border of round cut amethysts, the band set with further round cut amethysts, stamped 18K, size M1/2 / 6.5, 9.0g.

AN AMETHYST DRESS RING in 18ct rose gold, set with a fancy cut amethyst in a border of round cut amethysts, the band set with further round cut amethysts, stamped 18K, size M1/2 / 6.5, 9.0g.

Estimate £300 - £500

LOT 227

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut emerald of 14.64 carats, within a border of round cut diamonds, the diamonds all totalling 2.4-2.6 carats, stamped 750, size M / 6.25, 11.0g.

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut emerald of 14.64 carats, within a border of round cut diamonds, the diamonds all totalling 2.4-2.6 carats, stamped 750, size M / 6.25, 11.0g.

Estimate £6,000 - £8,000

LOT 229

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, the navette shaped face set with an old cut diamond accented by step cut sapphires and single cut diamonds, stamped 750, size M / 6.25, 4.1g. 

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, the navette shaped face set with an old cut diamond accented by step cut sapphires and single cut diamonds, stamped 750, size M / 6.25, 4.1g. 

Estimate £800 - £1,200

LOT 231

AN AQUAMARINE AND DIAMOND RING in platinum, set with an oval cut aquamarine of approximately 1.29 carats in a border of round brilliant cut diamonds, stamped PLAT, size M1/2 / 6.5, 4.7g.

AN AQUAMARINE AND DIAMOND RING in platinum, set with an oval cut aquamarine of approximately 1.29 carats in a border of round brilliant cut diamonds, stamped PLAT, size M1/2 / 6.5, 4.7g.

Estimate £800 - £1,200

LOT 233

A RUBY AND DIAMOND DRESS RING in platinum, the openwork face set with an old cut diamond of 0.62 carats accented by step cut rubies and round cut diamonds, inscribed D 0.62 0.22 0.12 0.40, stamped PLAT, size M / 6.25, 5.9g.

A RUBY AND DIAMOND DRESS RING in platinum, the openwork face set with an old cut diamond of 0.62 carats accented by step cut rubies and round cut diamonds, inscribed D 0.62 0.22 0.12 0.40, stamped PLAT, size M / 6.25, 5.9g.

Estimate £1,500 - £2,500

LOT 238

A DIAMOND THREE STONE RING in platinum, set with three princess cut diamonds of 0.31, 0.62 and 0.31 carats, full British hallmarks, size M1/2 / 6.5, 5.6g. Accompanied by three gemmological reports from the GIA stating that the principal diamond is F

A DIAMOND THREE STONE RING in platinum, set with three princess cut diamonds of 0.31, 0.62 and 0.31 carats, full British hallmarks, size M1/2 / 6.5, 5.6g. Accompanied by three gemmological reports from the GIA stating that the principal diamond is F

Estimate £3,000 - £5,000

LOT 240

NO RESERVE - A DIAMOND THREE STONE RING set with three old cut diamonds totalling 2.0- 2.2 carats, no assay marks, size N / 6, 2.7g. 

NO RESERVE - A DIAMOND THREE STONE RING set with three old cut diamonds totalling 2.0- 2.2 carats, no assay marks, size N / 6, 2.7g. 

Estimate £1,500 - £2,500

LOT 242

A PEARL AND DIAMOND RING in white gold, set with a pearl of 11.1mm, the shoulders set with baguette cut diamonds, no assay marks, size J1/2 / 5, 4.2g. 

A PEARL AND DIAMOND RING in white gold, set with a pearl of 11.1mm, the shoulders set with baguette cut diamonds, no assay marks, size J1/2 / 5, 4.2g. 

Estimate £800 - £1,200

LOT 244

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum, set with oval cut aquamarine of 1.92 carats in a border of round brilliant cut diamonds, full British hallmarks, size L1/2 / 6, 6.7g. 

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum, set with oval cut aquamarine of 1.92 carats in a border of round brilliant cut diamonds, full British hallmarks, size L1/2 / 6, 6.7g. 

Estimate £1,200 - £1,600

LOT 246

AN UNHEATED SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut sapphire of 6.17 carats in a cluster of round brilliant and baguette cut diamonds, stamped PT, size M1/2 / 6.5, 8.7g. Accompanied by a gemmological report stating that th

AN UNHEATED SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut sapphire of 6.17 carats in a cluster of round brilliant and baguette cut diamonds, stamped PT, size M1/2 / 6.5, 8.7g. Accompanied by a gemmological report stating that th

Estimate £10,000 - £15,000

LOT 248

A DIAMOND FIVE STONE RING in platinum, set with a row of five round brilliant cut diamonds all totalling 1.4-1.6 carats, full British hallmarks, size L1/2 / 6, 5.4g.

A DIAMOND FIVE STONE RING in platinum, set with a row of five round brilliant cut diamonds all totalling 1.4-1.6 carats, full British hallmarks, size L1/2 / 6, 5.4g.

Estimate £3,000 - £5,000

LOT 249

A MORGANITE AND DIAMOND CLUSTER RING in 18ct rose gold, set with an oval cut morganite of 5.45 carats within a border of round brilliant cut diamonds, full British hallmarks, size N1/2 / 7, 6.3g. 

A MORGANITE AND DIAMOND CLUSTER RING in 18ct rose gold, set with an oval cut morganite of 5.45 carats within a border of round brilliant cut diamonds, full British hallmarks, size N1/2 / 7, 6.3g. 

Estimate £1,500 - £2,500

LOT 253

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut emerald of 1.64 carats in a border of round brilliant cut diamonds, the diamonds all totalling 0.8-1.0 carats, stamped 750, size O / 7.25, 3.6g.

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut emerald of 1.64 carats in a border of round brilliant cut diamonds, the diamonds all totalling 0.8-1.0 carats, stamped 750, size O / 7.25, 3.6g.

Estimate £1,000 - £1,500

LOT 255

A RETRO PEARL, RUBY AND DIAMOND DRESS RING in rose and white gold, set with four pearls accented by French cut rubies and old cut diamonds, no assay marks, sizing band, size L1/2 / 6, 13.1g.

A RETRO PEARL, RUBY AND DIAMOND DRESS RING in rose and white gold, set with four pearls accented by French cut rubies and old cut diamonds, no assay marks, sizing band, size L1/2 / 6, 13.1g.

Estimate £800 - £1,200

LOT 259

NO RESERVE - AN AMETHYST AND DIAMOND CLUSTER RING set with an oval mixed cut amethyst in a cluster of rose cut diamonds, no assay marks, size K / 5, 4.0g.

NO RESERVE - AN AMETHYST AND DIAMOND CLUSTER RING set with an oval mixed cut amethyst in a cluster of rose cut diamonds, no assay marks, size K / 5, 4.0g.

Estimate £300 - £500

LOT 262

A RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut ruby of 0.76 carats within a border of round brilliant cut diamonds, accented by further diamonds to the band, stamped K18, size M / 6, 5.0g.

A RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut ruby of 0.76 carats within a border of round brilliant cut diamonds, accented by further diamonds to the band, stamped K18, size M / 6, 5.0g.

Estimate £600 - £800

LOT 264

A GEMSET REGARD CLUSTER RING in yellow gold, set with an old cut diamond in a cluster of round cut emeralds, sapphire, amethyst, ruby and blue topaz spelling 'dearest', no assay marks, size M / 6.26, 2.0g. 

A GEMSET REGARD CLUSTER RING in yellow gold, set with an old cut diamond in a cluster of round cut emeralds, sapphire, amethyst, ruby and blue topaz spelling 'dearest', no assay marks, size M / 6.26, 2.0g. 

Estimate £300 - £500

LOT 266

A CARVED EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with a carved cabochon emerald of approximately 1.15 carats, accented by baguette and round brilliant cut diamonds and step cut emeralds, stamped 750, size N / 6.75, 5.0g.

A CARVED EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with a carved cabochon emerald of approximately 1.15 carats, accented by baguette and round brilliant cut diamonds and step cut emeralds, stamped 750, size N / 6.75, 5.0g.

Estimate £2,000 - £3,000

LOT 269

NO RESERVE - A PINK TOURMALINE, RUBY AND DIAMOND RING set with an emerald cut pink tourmaline in a border of rose cut diamonds, accented by step cut rubies, with further rose cut diamonds accenting the band, stamped 750, size N / 7, 3.0g.

NO RESERVE - A PINK TOURMALINE, RUBY AND DIAMOND RING set with an emerald cut pink tourmaline in a border of rose cut diamonds, accented by step cut rubies, with further rose cut diamonds accenting the band, stamped 750, size N / 7, 3.0g.

Estimate £1,000 - £1,500

LOT 272

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of approximately 1.00 carat, full British hallmarks, size J / 4.75, 5.3g.

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of approximately 1.00 carat, full British hallmarks, size J / 4.75, 5.3g.

Estimate £2,000 - £3,000

LOT 274

A VINTAGE CORAL AND DIAMOND DRESS RING in 18ct yellow gold, the stylised band set with heart shaped coral accented by round brilliant cut diamonds, full British hallmarks for London 1973, size N1/2 / 7, 7.6g. 

A VINTAGE CORAL AND DIAMOND DRESS RING in 18ct yellow gold, the stylised band set with heart shaped coral accented by round brilliant cut diamonds, full British hallmarks for London 1973, size N1/2 / 7, 7.6g. 

Estimate £800 - £1,200

LOT 276

A VINTAGE EMERALD AND DIAMOND RING in 14ct white gold, set with a central emerald cut emerald of 1.08 carats between two old cut diamonds both totalling 0.60 carats, accented by single cut diamonds, stamped 585, size T / 9.5, 9.0g.

A VINTAGE EMERALD AND DIAMOND RING in 14ct white gold, set with a central emerald cut emerald of 1.08 carats between two old cut diamonds both totalling 0.60 carats, accented by single cut diamonds, stamped 585, size T / 9.5, 9.0g.

Estimate £2,000 - £3,000

LOT 279

A VINTAGE CORAL AND DIAMOND RING in 18ct yellow gold, set with six polished coral discs, the central disc set with a round brilliant cut diamond, stamped 750, size J / 4.5, 9.4g.

A VINTAGE CORAL AND DIAMOND RING in 18ct yellow gold, set with six polished coral discs, the central disc set with a round brilliant cut diamond, stamped 750, size J / 4.5, 9.4g.

Estimate £800 - £1,200

LOT 284

A GENTLEMAN'S DIAMOND DRESS RING in 9ct yellow gold, the rectangular face set with twenty round brilliant cut diamonds all totalling 2.3-2.6 carats, to scroll engraved shoulders, full British hallmarks, size S / 9.25, 44.5g.

A GENTLEMAN'S DIAMOND DRESS RING in 9ct yellow gold, the rectangular face set with twenty round brilliant cut diamonds all totalling 2.3-2.6 carats, to scroll engraved shoulders, full British hallmarks, size S / 9.25, 44.5g.

Estimate £1,500 - £2,500

LOT 290

AN AQUAMARINE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut aquamarine in a cluster of baguette and round brilliant cut diamonds, no assay marks, size O / 7.25, 3.2g. 

AN AQUAMARINE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut aquamarine in a cluster of baguette and round brilliant cut diamonds, no assay marks, size O / 7.25, 3.2g. 

Estimate £500 - £700

LOT 292

NO RESERVE - A SAPPHIRE AND DIAMOND THREE STONE RING set with an oval cut sapphire between two round brilliant cut diamonds, stamped 750, size L / 5, 2.1g.

NO RESERVE - A SAPPHIRE AND DIAMOND THREE STONE RING set with an oval cut sapphire between two round brilliant cut diamonds, stamped 750, size L / 5, 2.1g.

Estimate £300 - £500

LOT 294

AN AQUAMARINE AND DIAMOND RING in yellow gold, set with an octagonal step cut aquamarine of approximately 5.69 carats in a border of round brilliant cut diamonds, no assay marks, size N / 6.75, 7.8g. 

AN AQUAMARINE AND DIAMOND RING in yellow gold, set with an octagonal step cut aquamarine of approximately 5.69 carats in a border of round brilliant cut diamonds, no assay marks, size N / 6.75, 7.8g. 

Estimate £1,000 - £1,500

LOT 299

A DIAMOND ETERNITY RING in yellow gold, the flexible band set with a row of round brilliant cut diamonds all totalling 0.8-0.9 carats, no assay marks, size N / 6.5, 2.6g.

A DIAMOND ETERNITY RING in yellow gold, the flexible band set with a row of round brilliant cut diamonds all totalling 0.8-0.9 carats, no assay marks, size N / 6.5, 2.6g.

Estimate £500 - £700

LOT 301

A DIAMOND CLUSTER RING in white gold, set with a navette shaped cluster of round brilliant cut diamonds, the diamonds totalling 1.6-1.8 carats, no assay marks, size K / 5.25, 4.4g. 

A DIAMOND CLUSTER RING in white gold, set with a navette shaped cluster of round brilliant cut diamonds, the diamonds totalling 1.6-1.8 carats, no assay marks, size K / 5.25, 4.4g. 

Estimate £2,000 - £3,000

LOT 304

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 0.47 carats, with further diamonds to the shoulders, full British hallmarks, size M / 6.25, 4.8g. 

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 0.47 carats, with further diamonds to the shoulders, full British hallmarks, size M / 6.25, 4.8g. 

Estimate £800 - £1,200

LOT 307

A DIAMOND AND RUBY TARGET RING in 18ct white gold, set with a triangular rose cut diamond of 2.11 carats within concentric borders of calibre cut rubies and round cut diamonds, stamped 750, size O / 7, 8.5g.

A DIAMOND AND RUBY TARGET RING in 18ct white gold, set with a triangular rose cut diamond of 2.11 carats within concentric borders of calibre cut rubies and round cut diamonds, stamped 750, size O / 7, 8.5g.

Estimate £4,000 - £6,000

LOT 309

A SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a cushion cut sapphire of 2.20 carats accented by rose and round cut diamonds, the diamonds all totalling 0.5-0.7 carats, stamped 750, size N / 6.75, 6.1g.

A SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a cushion cut sapphire of 2.20 carats accented by rose and round cut diamonds, the diamonds all totalling 0.5-0.7 carats, stamped 750, size N / 6.75, 6.1g.

Estimate £1,000 - £1,500

LOT 314

A DIAMOND CLUSTER ENGAGEMENT RING in platinum, set with an oval cut diamond of 0.70 carats within a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size M / 6.25, 5.3g. Accompanied by a gemmological

A DIAMOND CLUSTER ENGAGEMENT RING in platinum, set with an oval cut diamond of 0.70 carats within a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size M / 6.25, 5.3g. Accompanied by a gemmological

Estimate £2,500 - £3,500

LOT 317

A JADEITE JADE AND DIAMOND CROSSOVER RING in yellow gold, set with two pear shaped jadeite jade cabochons accented by round brilliant cut diamonds, no assay marks, size M / 6.25, 4.4g.

A JADEITE JADE AND DIAMOND CROSSOVER RING in yellow gold, set with two pear shaped jadeite jade cabochons accented by round brilliant cut diamonds, no assay marks, size M / 6.25, 4.4g.

Estimate £250 - £350

LOT 319

A SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with a cushion cut sapphire of approximately 1.03 carats in a cluster of old cut diamonds, the diamonds all totalling 0.8-1.0 carats, no assay marks, size M / 6.25, 2.4g. 

A SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with a cushion cut sapphire of approximately 1.03 carats in a cluster of old cut diamonds, the diamonds all totalling 0.8-1.0 carats, no assay marks, size M / 6.25, 2.4g. 

Estimate £1,500 - £2,500

LOT 321

A RUBY AND DIAMOND THREE STONE RING in 18ct yellow gold, set with a cushion cut ruby of approximately 1.08 carats between two round brilliant cut diamonds, partial British hallmarks, size M1/2 / 6.5, 3.0g. 

A RUBY AND DIAMOND THREE STONE RING in 18ct yellow gold, set with a cushion cut ruby of approximately 1.08 carats between two round brilliant cut diamonds, partial British hallmarks, size M1/2 / 6.5, 3.0g. 

Estimate £800 - £1,200

LOT 323

A VINTAGE SYNTHETIC SAPPHIRE RING in 14ct yellow gold, in crossover design, set with round cut synthetic sapphires, stamped 585, size Q / 8, 15.2g.

A VINTAGE SYNTHETIC SAPPHIRE RING in 14ct yellow gold, in crossover design, set with round cut synthetic sapphires, stamped 585, size Q / 8, 15.2g.

Estimate £500 - £700

LOT 327

A DIAMOND DRESS RING set with a round brilliant cut diamond of approximately 1.25 carats accented by further round cut diamonds, no assay marks, size L1/2 / 6, 6.3g. 

A DIAMOND DRESS RING set with a round brilliant cut diamond of approximately 1.25 carats accented by further round cut diamonds, no assay marks, size L1/2 / 6, 6.3g. 

Estimate £3,000 - £5,000

LOT 330

A DIAMOND CLUSTER RING in 18ct yellow and white gold, set with round brilliant cut diamonds all totalling 1.0-1.2 carats, full British hallmarks, size N1/2 / 7, 4.5g. 

A DIAMOND CLUSTER RING in 18ct yellow and white gold, set with round brilliant cut diamonds all totalling 1.0-1.2 carats, full British hallmarks, size N1/2 / 7, 4.5g. 

Estimate £1,000 - £1,500

LOT 332

AN EMERALD AND DIAMOND DRESS RING in platinum, set with an octagonal step cut emerald of 14.70 carats in a cluster of oval cut diamonds, the band accented by baguette cut diamonds, the diamonds all totalling 2.16 carats, stamped Pt950, inscribed D1.5

AN EMERALD AND DIAMOND DRESS RING in platinum, set with an octagonal step cut emerald of 14.70 carats in a cluster of oval cut diamonds, the band accented by baguette cut diamonds, the diamonds all totalling 2.16 carats, stamped Pt950, inscribed D1.5

Estimate £6,000 - £8,000

LOT 334

AN AMETHYST AND DIAMOND COCKTAIL RING set with an octagonal step cut amethyst accented by fancy and baguette cut diamonds, no assay marks, size N / 6.5, 11.8g.

AN AMETHYST AND DIAMOND COCKTAIL RING set with an octagonal step cut amethyst accented by fancy and baguette cut diamonds, no assay marks, size N / 6.5, 11.8g.

Estimate £1,000 - £1,500

LOT 339

AN ART DECO DIAMOND DRESS RING in white gold, set with an old cut diamond of approximately 1.20 carats accented by further old cut diamonds, the diamonds all totalling 1.6-1.8 carats, no assay marks, size L / 5.75, 5.6g. 

AN ART DECO DIAMOND DRESS RING in white gold, set with an old cut diamond of approximately 1.20 carats accented by further old cut diamonds, the diamonds all totalling 1.6-1.8 carats, no assay marks, size L / 5.75, 5.6g. 

Estimate £3,000 - £5,000

LOT 344

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of approximately 1.43 carats, the stylised shoulders set with round cut diamonds, stamped PLAT, size P / 7.5, 4.0g. 

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of approximately 1.43 carats, the stylised shoulders set with round cut diamonds, stamped PLAT, size P / 7.5, 4.0g. 

Estimate £3,000 - £5,000

LOT 349

A PINK SAPPHIRE AND DIAMOND CLUSTER RING in 18ct rose gold, set with an oval cut pink sapphire of 0.88 carats to a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size L1/2 / 6, 3.3g. 

A PINK SAPPHIRE AND DIAMOND CLUSTER RING in 18ct rose gold, set with an oval cut pink sapphire of 0.88 carats to a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size L1/2 / 6, 3.3g. 

Estimate £800 - £1,200

LOT 351

AN AGATE AND DIAMOND RING in white gold, set with a round brilliant cut diamond of approximately 2.14 carats in a border of polished agate, no assay marks, size L / 5.75, 3.7g.

AN AGATE AND DIAMOND RING in white gold, set with a round brilliant cut diamond of approximately 2.14 carats in a border of polished agate, no assay marks, size L / 5.75, 3.7g.

Estimate £4,000 - £6,000

LOT 354

A FANCY COLOURED DIAMOND DIAMOND HALO RING in platinum, set to the centre with a round brilliant cut diamond of 2.33 carats, to a border of round brilliant cut diamonds, to round brilliant cut diamond set shoulders, full British hallmarks, size L / 5

A FANCY COLOURED DIAMOND DIAMOND HALO RING in platinum, set to the centre with a round brilliant cut diamond of 2.33 carats, to a border of round brilliant cut diamonds, to round brilliant cut diamond set shoulders, full British hallmarks, size L / 5

Estimate £6,000 - £8,000

LOT 356

A VINTAGE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with an oval cut sapphire of 3.50 carats between an old and a round brilliant cut diamond, the diamonds both totalling 0.70 carats, stamped 950, size K / 5, 5.4g. Accompanied by a ve

A VINTAGE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with an oval cut sapphire of 3.50 carats between an old and a round brilliant cut diamond, the diamonds both totalling 0.70 carats, stamped 950, size K / 5, 5.4g. Accompanied by a ve

Estimate £1,500 - £2,500

LOT 358

A MULTI COLOURED DIAMOND CLUSTER RING in 18ct yellow gold, set with a cluster of white, pink, and yellow diamonds, full British hallmarks, size N1/2 / 7, 4.0g. 

A MULTI COLOURED DIAMOND CLUSTER RING in 18ct yellow gold, set with a cluster of white, pink, and yellow diamonds, full British hallmarks, size N1/2 / 7, 4.0g. 

Estimate £400 - £600

LOT 360

A PINK TOURMALINE, EMERALD AND DIAMOND RING in 18ct white gold, set with an oval cut pink tourmaline of 6.48 carats accented by two rectangular step cut emeralds, in a border of round brilliant cut diamonds, inscribed 6.48 0.68ct d0.315, stamped Au75

A PINK TOURMALINE, EMERALD AND DIAMOND RING in 18ct white gold, set with an oval cut pink tourmaline of 6.48 carats accented by two rectangular step cut emeralds, in a border of round brilliant cut diamonds, inscribed 6.48 0.68ct d0.315, stamped Au75

Estimate £2,000 - £3,000

LOT 362

AN EMERALD AND DIAMOND RING in 18ct white gold, set with an octagonal step cut emerald of 5.71 carats in a border of round brilliant cut diamonds, the band set with a row of round and baguette cut diamonds, the diamonds all totalling 1.2-1.6 carats,

AN EMERALD AND DIAMOND RING in 18ct white gold, set with an octagonal step cut emerald of 5.71 carats in a border of round brilliant cut diamonds, the band set with a row of round and baguette cut diamonds, the diamonds all totalling 1.2-1.6 carats,

Estimate £4,000 - £6,000

LOT 367

AN UNHEATED SAPPHIRE AND DIAMOND RING in white gold, set with a cushion cut sapphire of 5.31 carats, between two pear cut sapphires both totalling 1.6-1.8 carats, within borders of round brilliant cut diamonds, no assay marks, size N / 6.75, 8.9g. Ac

AN UNHEATED SAPPHIRE AND DIAMOND RING in white gold, set with a cushion cut sapphire of 5.31 carats, between two pear cut sapphires both totalling 1.6-1.8 carats, within borders of round brilliant cut diamonds, no assay marks, size N / 6.75, 8.9g. Ac

Estimate £6,000 - £8,000

LOT 369

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a rose cut diamond of approximately 1.25 carats, no assay marks, size N1/2 / 7, 3.8g. 

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a rose cut diamond of approximately 1.25 carats, no assay marks, size N1/2 / 7, 3.8g. 

Estimate £2,500 - £3,500

LOT 371

A DIAMOND THREE STONE RING in 18ct white and yellow gold, set with a central round brilliant cut diamond between two pear cut diamonds, the diamonds all totalling 0.8-1.0 carats, stamped 18K, size M1/2 / 6.5, 2.8g.

A DIAMOND THREE STONE RING in 18ct white and yellow gold, set with a central round brilliant cut diamond between two pear cut diamonds, the diamonds all totalling 0.8-1.0 carats, stamped 18K, size M1/2 / 6.5, 2.8g.

Estimate £1,500 - £2,500

LOT 373

A THREE STONE RUBY AND DIAMOND RING set with a step cut ruby of approximately 0.81 carats accented by two round brilliant cut diamonds, no assay marks, size K1/2 / 5.5, 3.5g. 

A THREE STONE RUBY AND DIAMOND RING set with a step cut ruby of approximately 0.81 carats accented by two round brilliant cut diamonds, no assay marks, size K1/2 / 5.5, 3.5g. 

Estimate £1,000 - £1,500

LOT 375

NO RESERVE - A DIAMOND CLUSTER RING set to the centre with a round brilliant cut diamond, in a double cluster of round brilliant cut diamonds, stamped 750, size M / 6, 2.5g.

NO RESERVE - A DIAMOND CLUSTER RING set to the centre with a round brilliant cut diamond, in a double cluster of round brilliant cut diamonds, stamped 750, size M / 6, 2.5g.

Estimate £300 - £500

LOT 376

A MIXED LOT OF THREE RINGS comprising a smokey quartz ring in 9ct yellow gold, set with a round cut smokey quartz, full British hallmarks, size L / 5.75, a citrine and diamond ring in 18ct yellow gold, set with three round cut citrines accented by ro

A MIXED LOT OF THREE RINGS comprising a smokey quartz ring in 9ct yellow gold, set with a round cut smokey quartz, full British hallmarks, size L / 5.75, a citrine and diamond ring in 18ct yellow gold, set with three round cut citrines accented by ro

Estimate £200 - £300

LOT 381

A SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut sapphire in a border of round brilliant cut diamonds, no assay marks, size P / 7.75, 5.1g. 

A SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut sapphire in a border of round brilliant cut diamonds, no assay marks, size P / 7.75, 5.1g. 

Estimate £2,000 - £3,000

LOT 384

AN EMERALD AND DIAMOND RING in 18ct yellow gold, set with an oval cut emerald of 2.83 carats in a border of round brilliant cut diamonds, with further diamonds to the band, stamped 750, size N / 6.75, 4.5g. 

AN EMERALD AND DIAMOND RING in 18ct yellow gold, set with an oval cut emerald of 2.83 carats in a border of round brilliant cut diamonds, with further diamonds to the band, stamped 750, size N / 6.75, 4.5g. 

Estimate £600 - £800

LOT 389

A DIAMOND FIVE STONE RING in white gold, set with five round brilliant cut diamonds totalling 0.7-0.8 carats, stamped 18CT, size V / 10.5, 4.1g.

A DIAMOND FIVE STONE RING in white gold, set with five round brilliant cut diamonds totalling 0.7-0.8 carats, stamped 18CT, size V / 10.5, 4.1g.

Estimate £800 - £1,200

LOT 398

AN EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut emerald of 1.25 carats in a border of baguette and round cut diamonds, stamped 750, size M / 6.25, 2.6g.

AN EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut emerald of 1.25 carats in a border of baguette and round cut diamonds, stamped 750, size M / 6.25, 2.6g.

Estimate £800 - £1,200

LOT 399

A SAPPHIRE AND DIAMOND DRESS RING set with an old cut diamond of approximately 0.86 carats, the openwork face accented by further round cut diamonds and step cut sapphires, no assay marks, size N1/2 / 7, 5.9g. 

A SAPPHIRE AND DIAMOND DRESS RING set with an old cut diamond of approximately 0.86 carats, the openwork face accented by further round cut diamonds and step cut sapphires, no assay marks, size N1/2 / 7, 5.9g. 

Estimate £2,000 - £3,000

LOT 402

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a round cut diamond of approximately 0.54 carats, accented on each side by three round cut diamonds, no assay marks, size N / 6.75, 4.0g. 

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a round cut diamond of approximately 0.54 carats, accented on each side by three round cut diamonds, no assay marks, size N / 6.75, 4.0g. 

Estimate £500 - £700

LOT 405

A SAPPHIRE AND DIAMOND DRESS RING set with a cushion cut sapphire accented by baguette cut sapphires and round brilliant cut diamonds, no assay marks, size O1/2 / 7.5, 4.3g. 

A SAPPHIRE AND DIAMOND DRESS RING set with a cushion cut sapphire accented by baguette cut sapphires and round brilliant cut diamonds, no assay marks, size O1/2 / 7.5, 4.3g. 

Estimate £2,000 - £3,000

LOT 407

A BURMESE RUBY AND DIAMOND RING in 18ct white gold, set with a cushion cut ruby of 4.07 carats, accented by pear and round cut diamonds, the diamonds all totalling 1.4-1.6 carats, stamped 750, size N / 6.75, 5.6g.

A BURMESE RUBY AND DIAMOND RING in 18ct white gold, set with a cushion cut ruby of 4.07 carats, accented by pear and round cut diamonds, the diamonds all totalling 1.4-1.6 carats, stamped 750, size N / 6.75, 5.6g.

Estimate £4,000 - £6,000

LOT 409

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with a cushion cut sapphire of 1.84 carats in a border of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size M / 6.25, 6.5g. 

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with a cushion cut sapphire of 1.84 carats in a border of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size M / 6.25, 6.5g. 

Estimate £2,500 - £3,500

LOT 412

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum and 18ct yellow gold, set with an octagonal step cut aquamarine of approximately 2.47 carats in a border of round brilliant cut diamonds, stamped 18CT PLAT, size N / 6.75, 4.5g.

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum and 18ct yellow gold, set with an octagonal step cut aquamarine of approximately 2.47 carats in a border of round brilliant cut diamonds, stamped 18CT PLAT, size N / 6.75, 4.5g.

Estimate £800 - £1,200

LOT 416

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut emerald of approximately 1.27 carats in a cluster of alternating baguette and round brilliant cut diamonds, stamped 750, size N / 6.75, 4.6g.

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut emerald of approximately 1.27 carats in a cluster of alternating baguette and round brilliant cut diamonds, stamped 750, size N / 6.75, 4.6g.

Estimate £1,500 - £2,500

LOT 419

AN AQUAMARINE AND DIAMOND RING in platinum, set with an octagonal step cut aquamarine in an openwork border of round brilliant cut diamonds, stamped PLAT, size N1/2 / 7, 3.8g. 

AN AQUAMARINE AND DIAMOND RING in platinum, set with an octagonal step cut aquamarine in an openwork border of round brilliant cut diamonds, stamped PLAT, size N1/2 / 7, 3.8g. 

Estimate £600 - £800

LOT 422

A BELLE EPOQUE DIAMOND RING set with three principal old cut diamonds within an openwork border, each shoulder accented by a further old cut diamonds, the diamonds all totalling 1.4-1.6 carats, no assay marks, size L1/2 / 6, 4.9g.

A BELLE EPOQUE DIAMOND RING set with three principal old cut diamonds within an openwork border, each shoulder accented by a further old cut diamonds, the diamonds all totalling 1.4-1.6 carats, no assay marks, size L1/2 / 6, 4.9g.

Estimate £2,500 - £3,500

LOT 424

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of 4.27 carats, within a border of round cut diamonds, with further diamonds to the band, the diamonds all totalling 2.0-2.4 carats, stamped 750, size N / 6.75, 8.7

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of 4.27 carats, within a border of round cut diamonds, with further diamonds to the band, the diamonds all totalling 2.0-2.4 carats, stamped 750, size N / 6.75, 8.7

Estimate £4,000 - £6,000

LOT 426

A DIAMOND CLUSTER RING in 18ct white gold, set to the centre with a round brilliant cut diamond of approximately 0.72 carats within a square shaped cluster of round brilliant cut diamonds, full British hallmarks, size J1/2 / 5, 3.4g. 

A DIAMOND CLUSTER RING in 18ct white gold, set to the centre with a round brilliant cut diamond of approximately 0.72 carats within a square shaped cluster of round brilliant cut diamonds, full British hallmarks, size J1/2 / 5, 3.4g. 

Estimate £600 - £800

LOT 428

A SOLITAIRE DIAMOND ENGAGEMENT RING in white gold, set with a round brilliant cut diamond of approximately 0.80 carats, no assay marks, size L / 5.75, 4.7g. 

A SOLITAIRE DIAMOND ENGAGEMENT RING in white gold, set with a round brilliant cut diamond of approximately 0.80 carats, no assay marks, size L / 5.75, 4.7g. 

Estimate £2,000 - £3,000

LOT 430

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum, set with a cushion cut aquamarine of approximately 2.87 carats in a border of round brilliant cut diamonds, stamped PLAT, size M1/2 / 6.5, 7.7g.

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum, set with a cushion cut aquamarine of approximately 2.87 carats in a border of round brilliant cut diamonds, stamped PLAT, size M1/2 / 6.5, 7.7g.

Estimate £1,500 - £2,500

LOT 432

AN EMERALD AND DIAMOND CLUSTER RING in platinum, set with an emerald cut emerald of 1.03 carats within a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size M / 6.25, 6.7g. 

AN EMERALD AND DIAMOND CLUSTER RING in platinum, set with an emerald cut emerald of 1.03 carats within a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size M / 6.25, 6.7g. 

Estimate £1,500 - £2,500

LOT 434

A TANZANITE AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut tanzanite of 1.72 carats in a hexagonal border of round and baguette cut diamonds, with further diamonds to the shoulders, stamped 750, size K1/2 / 5.75, 3.5g.

A TANZANITE AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut tanzanite of 1.72 carats in a hexagonal border of round and baguette cut diamonds, with further diamonds to the shoulders, stamped 750, size K1/2 / 5.75, 3.5g.

Estimate £1,000 - £1,500

LOT 436

A CABOCHON STAR SAPPHIRE RING in platinum, set with an oval cabochon star sapphire of 40.83 carats, stamped Pt, size M1/2 / 6.5, 18.7g. 

A CABOCHON STAR SAPPHIRE RING in platinum, set with an oval cabochon star sapphire of 40.83 carats, stamped Pt, size M1/2 / 6.5, 18.7g. 

Estimate £15,000 - £25,000

LOT 442

AN UNHEATED SAPPHIRE AND DIAMOND RING in platinum and 18ct yellow gold, set with an oval cut sapphire of 1.86 carats in a border of round cut diamonds, stamped 18PLAT, size L1/2 / 6, 2.3g. Accompanied by a gemmological report stating the sapphire is

AN UNHEATED SAPPHIRE AND DIAMOND RING in platinum and 18ct yellow gold, set with an oval cut sapphire of 1.86 carats in a border of round cut diamonds, stamped 18PLAT, size L1/2 / 6, 2.3g. Accompanied by a gemmological report stating the sapphire is

Estimate £2,000 - £3,000

LOT 444

AN ANTIQUE SAPPHIRE AND DIAMOND RING in yellow gold, set with three cushion cut sapphires punctuated by pairs of old cut diamonds, marked indistinctly, size M1/2 / 6.5, 1.6g. 

AN ANTIQUE SAPPHIRE AND DIAMOND RING in yellow gold, set with three cushion cut sapphires punctuated by pairs of old cut diamonds, marked indistinctly, size M1/2 / 6.5, 1.6g. 

Estimate £400 - £600

LOT 447

A NATURAL PEARL AND DIAMOND RING set with a natural saltwater pearl of 10.4mm accented by single cut diamonds, no assay marks, size L / 5.75, 3.5g. Accompanied by a gemmological report stating the pearl is natural and of saltwater origin.

A NATURAL PEARL AND DIAMOND RING set with a natural saltwater pearl of 10.4mm accented by single cut diamonds, no assay marks, size L / 5.75, 3.5g. Accompanied by a gemmological report stating the pearl is natural and of saltwater origin.

Estimate £3,000 - £5,000

LOT 449

A RUBY AND DIAMOND CLUSTER RING set with an elongated cushion cut ruby of approximately 3.82 carats in a cluster of round brilliant cut diamonds, no assay marks, size Q / 8.25, 5.8g. 

A RUBY AND DIAMOND CLUSTER RING set with an elongated cushion cut ruby of approximately 3.82 carats in a cluster of round brilliant cut diamonds, no assay marks, size Q / 8.25, 5.8g. 

Estimate £1,200 - £1,600

LOT 450

AN EARLY ANTIQUE GOLD SIGNET RING in high carat yellow gold, with an engraved crest of a lion, no assay marks, size R / 8.5, 3.7g. 

AN EARLY ANTIQUE GOLD SIGNET RING in high carat yellow gold, with an engraved crest of a lion, no assay marks, size R / 8.5, 3.7g. 

Estimate £500 - £700

LOT 451

A HEART SHAPED RUBY AND DIAMOND RING set with a heart cut ruby in a border of round brilliant cut diamonds, no assay marks, size Q / 8.25, 5.0g. 

A HEART SHAPED RUBY AND DIAMOND RING set with a heart cut ruby in a border of round brilliant cut diamonds, no assay marks, size Q / 8.25, 5.0g. 

Estimate £1,000 - £1,500

LOT 454

AN EMERALD AND DIAMOND RING in 14ct white gold, set with an octagonal step cut emerald of 1.87 carats, the band half set with round brilliant cut diamonds, stamped 14K, size M1/2 / 6.5, 2.9g. Accompanied by a gemmological report stating that the emer

AN EMERALD AND DIAMOND RING in 14ct white gold, set with an octagonal step cut emerald of 1.87 carats, the band half set with round brilliant cut diamonds, stamped 14K, size M1/2 / 6.5, 2.9g. Accompanied by a gemmological report stating that the emer

Estimate £3,000 - £5,000

LOT 457

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a cushion cut sapphire of approximately 1.38 carats accented by a double border of round brilliant cut diamonds, further round brilliant cut diamonds to the band, stamped 750, si

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a cushion cut sapphire of approximately 1.38 carats accented by a double border of round brilliant cut diamonds, further round brilliant cut diamonds to the band, stamped 750, si

Estimate £1,500 - £2,500

LOT 460

AN EMERALD AND DIAMOND RING in platinum, set with an oval cut emerald accented by round brilliant and baguette cut diamonds, stamped PLAT, size P / 7.75, 4.6g. 

AN EMERALD AND DIAMOND RING in platinum, set with an oval cut emerald accented by round brilliant and baguette cut diamonds, stamped PLAT, size P / 7.75, 4.6g. 

Estimate £800 - £1,200

LOT 462

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a pear cut diamond of 0.90 carats within a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size N / 6.75, 6.4g. Accompanied by a gemmologica

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a pear cut diamond of 0.90 carats within a cluster of round brilliant cut diamonds, with further diamonds to the band, full British hallmarks, size N / 6.75, 6.4g. Accompanied by a gemmologica

Estimate £2,500 - £3,500

LOT 463

A RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut ruby in a cluster of round brilliant cut diamonds, with further round brilliant cut diamonds to the band, stamped 750, size N / 6.75, 2.6g. 

A RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut ruby in a cluster of round brilliant cut diamonds, with further round brilliant cut diamonds to the band, stamped 750, size N / 6.75, 2.6g. 

Estimate £800 - £1,200

LOT 465

AN ORANGE SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut orange sapphire of 1.35 carats to a border of round cut diamonds, with further diamonds to the band, full British hallmarks, size L1/2 / 6, 5.4g. 

AN ORANGE SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut orange sapphire of 1.35 carats to a border of round cut diamonds, with further diamonds to the band, full British hallmarks, size L1/2 / 6, 5.4g. 

Estimate £800 - £1,200

LOT 472

AN UNHEATED RUBY AND DIAMOND RING in 14ct white gold, set with an oval cut ruby of 0.79 carats, the split band set with round brilliant cut diamonds, stamped 14K, size N1/2 / 7, 4.3g. Accompanied by a gemmological report stating that the ruby is of T

AN UNHEATED RUBY AND DIAMOND RING in 14ct white gold, set with an oval cut ruby of 0.79 carats, the split band set with round brilliant cut diamonds, stamped 14K, size N1/2 / 7, 4.3g. Accompanied by a gemmological report stating that the ruby is of T

Estimate £1,200 - £1,600

LOT 473

A CITRINE DRESS RING in yellow gold, the abstract band set with a cabochon citrine, no assay marks, size Q / 8, 6.3g.

A CITRINE DRESS RING in yellow gold, the abstract band set with a cabochon citrine, no assay marks, size Q / 8, 6.3g.

Estimate £300 - £500

LOT 479

A VINTAGE STAR SAPPHIRE CLUSTER RING in yellow and white gold, set with a star sapphire of approximately 3.20 carats, in a border of round cut sapphires totalling 1.0-1.2 carats, no assay marks, R1/2 / 8.75, 8.3g. Accompanied by a box.

A VINTAGE STAR SAPPHIRE CLUSTER RING in yellow and white gold, set with a star sapphire of approximately 3.20 carats, in a border of round cut sapphires totalling 1.0-1.2 carats, no assay marks, R1/2 / 8.75, 8.3g. Accompanied by a box.

Estimate £1,500 - £2,500

LOT 481

A SAPPHIRE AND DIAMOND THREE STONE RING in 18ct white gold, set with a rectangular cushion cut sapphire of approximately 2.22 carats between two round brilliant cut diamonds, full British hallmarks, size M / 6.25, 3.8g. 

A SAPPHIRE AND DIAMOND THREE STONE RING in 18ct white gold, set with a rectangular cushion cut sapphire of approximately 2.22 carats between two round brilliant cut diamonds, full British hallmarks, size M / 6.25, 3.8g. 

Estimate £1,500 - £2,500

LOT 482

AN UNHEATED PURPLE SAPPHIRE AND DIAMOND RING in 14ct white gold, set with an oval cut purple sapphire of 1.05 carats in a border of round brilliant cut diamonds, the band half set with three rows of further diamonds, stamped 14K, size N / 6.75, 6.8g.

AN UNHEATED PURPLE SAPPHIRE AND DIAMOND RING in 14ct white gold, set with an oval cut purple sapphire of 1.05 carats in a border of round brilliant cut diamonds, the band half set with three rows of further diamonds, stamped 14K, size N / 6.75, 6.8g.

Estimate £800 - £1,200

LOT 483

A 2.67 CARAT DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 2.67 carats, the trifurcated band accented by further round brilliant cut diamonds, full British hallmarks, size O / 7.25, 12.0g. 

A 2.67 CARAT DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 2.67 carats, the trifurcated band accented by further round brilliant cut diamonds, full British hallmarks, size O / 7.25, 12.0g. 

Estimate £10,000 - £15,000

LOT 487

A DIAMOND, ONYX AND EMERALD PANTHER RING in 18ct white gold, designed as a panther coiled around a branch, set with round cut diamonds, polished onyx and pear cut emerald eyes, with further polished onyx to the band, the diamonds all totalling 1.5-1.

A DIAMOND, ONYX AND EMERALD PANTHER RING in 18ct white gold, designed as a panther coiled around a branch, set with round cut diamonds, polished onyx and pear cut emerald eyes, with further polished onyx to the band, the diamonds all totalling 1.5-1.

Estimate £2,000 - £3,000

LOT 489

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut sapphire in a double border of single cut diamonds, the shoulders set with trios of further single cut diamonds, stamped PT950, size M / 6.26, 5.1g. 

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut sapphire in a double border of single cut diamonds, the shoulders set with trios of further single cut diamonds, stamped PT950, size M / 6.26, 5.1g. 

Estimate £800 - £1,200

LOT 492

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a rectangular step cut diamond, the band set with round brilliant cut diamonds, no assay marks, size K1/2 / 5.5, 4.4g. 

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a rectangular step cut diamond, the band set with round brilliant cut diamonds, no assay marks, size K1/2 / 5.5, 4.4g. 

Estimate £800 - £1,200

LOT 493

AN EMERALD AND DIAMOND RING in platinum, set with an octagonal step cut emerald of 1.96 carats, the stylised band set with marquise and round brilliant cut diamonds, stamped PLAT, size O / 7.25, 5.3g. Accompanied by a gemmological report stating that

AN EMERALD AND DIAMOND RING in platinum, set with an octagonal step cut emerald of 1.96 carats, the stylised band set with marquise and round brilliant cut diamonds, stamped PLAT, size O / 7.25, 5.3g. Accompanied by a gemmological report stating that

Estimate £3,000 - £5,000

LOT 497

A 2.15 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 2.15 carats, partial British hallmarks, size K1/2 / 5.5, 4.1g. 

A 2.15 CARAT SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 2.15 carats, partial British hallmarks, size K1/2 / 5.5, 4.1g. 

Estimate £5,000 - £7,000

LOT 500

AN EMERALD AND DIAMOND RING in 18ct white gold, set with an oval cut emerald of 2.85 carats in a border of round brilliant cut diamonds, the band set with further diamonds, stamped 18CT, size N1/2 / 7, 4.3g. Accompanied by a gemmological report stati

AN EMERALD AND DIAMOND RING in 18ct white gold, set with an oval cut emerald of 2.85 carats in a border of round brilliant cut diamonds, the band set with further diamonds, stamped 18CT, size N1/2 / 7, 4.3g. Accompanied by a gemmological report stati

Estimate £1,200 - £1,600

LOT 501

A SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut sapphire of approximately 1.23 carats in a double cluster of round brilliant cut diamonds, no assay marks, size M / 6.25, 5.9g. 

A SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut sapphire of approximately 1.23 carats in a double cluster of round brilliant cut diamonds, no assay marks, size M / 6.25, 5.9g. 

Estimate £1,500 - £2,500

LOT 503

A RUBY AND DIAMOND CLUSTER RING in platinum, set with an oval cut ruby of 0.96 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N / 6.75, 6.3g. 

A RUBY AND DIAMOND CLUSTER RING in platinum, set with an oval cut ruby of 0.96 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N / 6.75, 6.3g. 

Estimate £2,000 - £3,000

LOT 505

A CEYLON NO HEAT COLOUR CHANGE SAPPHIRE AND DIAMOND RING in 18ct rose gold, set with a cushion cut colour change sapphire of 1.00 carats, in a border of round brilliant cut diamonds, the band half set with further diamonds, Polish assay marks, size O

A CEYLON NO HEAT COLOUR CHANGE SAPPHIRE AND DIAMOND RING in 18ct rose gold, set with a cushion cut colour change sapphire of 1.00 carats, in a border of round brilliant cut diamonds, the band half set with further diamonds, Polish assay marks, size O

Estimate £600 - £800

LOT 506

A DIAMOND THREE STONE RING set with three round brilliant cut diamonds, no assay marks, size K1/2 / 5.5, 1.6g. 

A DIAMOND THREE STONE RING set with three round brilliant cut diamonds, no assay marks, size K1/2 / 5.5, 1.6g. 

Estimate £300 - £500

LOT 509

AN EMERALD AND DIAMOND DRESS RING set with a marquise cut emerald accented by round brilliant cut diamonds, no assay marks, size Q1/2 / 8.5, 6.8g. 

AN EMERALD AND DIAMOND DRESS RING set with a marquise cut emerald accented by round brilliant cut diamonds, no assay marks, size Q1/2 / 8.5, 6.8g. 

Estimate £1,000 - £1,500

LOT 511

A CEYLON SAPPHIRE AND DIAMOND RING in 18ct white gold, set with an oval cut sapphire of 1.31 carats, the band set with round brilliant cut diamonds, stamped 18CT, size N / 6.75, 3.3g. Accompanied by a gemmological report stating that the sapphire is

A CEYLON SAPPHIRE AND DIAMOND RING in 18ct white gold, set with an oval cut sapphire of 1.31 carats, the band set with round brilliant cut diamonds, stamped 18CT, size N / 6.75, 3.3g. Accompanied by a gemmological report stating that the sapphire is

Estimate £1,500 - £2,500