Lot 285

A COLOMBIAN EMERALD AND DIAMOND RING set with an o ...

Lot 285

A COLOMBIAN EMERALD AND DIAMOND RING set with an o ...

Estimate £3,000 - £5,000


Description

A COLOMBIAN EMERALD AND DIAMOND RING set with an octagonal step cut emerald of approximately 7.00 carats, the band set with round brilliant cut diamonds, stamped 18K, size P / 7.75, 6.2g. 

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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 2

AN ANTIQUE DIAMOND RING in yellow gold, set with two rows of old cut diamonds, accented by small rose cut diamonds, the diamonds all totalling 2.5-3.0 carats, no assay marks, size N / 6.75, 3.1g. 

AN ANTIQUE DIAMOND RING in yellow gold, set with two rows of old cut diamonds, accented by small rose cut diamonds, the diamonds all totalling 2.5-3.0 carats, no assay marks, size N / 6.75, 3.1g. 

Estimate £1,000 - £1,500

LOT 6

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of approximately 8.00 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 0.7-0.8 carats, full British hallmarks for London 1999, size

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of approximately 8.00 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 0.7-0.8 carats, full British hallmarks for London 1999, size

Estimate £2,500 - £3,500

LOT 9

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an octagonal step cut emerald of approximately 1.25 carats in a cluster of round brilliant cut diamonds, partial British hallmarks, stamped 750, size O / 7.25, 5.6g. 

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an octagonal step cut emerald of approximately 1.25 carats in a cluster of round brilliant cut diamonds, partial British hallmarks, stamped 750, size O / 7.25, 5.6g. 

Estimate £800 - £1,200

LOT 12

A DIAMOND BOMBE RING the domed face pave set with round brilliant cut diamonds all totalling 2.5-3.0 carats, stamped 750, size R1/2 / 8.75, 10.9g. 

A DIAMOND BOMBE RING the domed face pave set with round brilliant cut diamonds all totalling 2.5-3.0 carats, stamped 750, size R1/2 / 8.75, 10.9g. 

Estimate £1,000 - £1,500

LOT 19

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut aquamarine of approximately 6.37 carats in a cluster of round brilliant cut diamonds, the diamonds totalling 0.9-1.0 carat, full British hallmarks, stamped 750,

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut aquamarine of approximately 6.37 carats in a cluster of round brilliant cut diamonds, the diamonds totalling 0.9-1.0 carat, full British hallmarks, stamped 750,

Estimate £1,000 - £1,500

LOT 22

A TANZANITE AND DIAMOND RING set with a mixed cut tanzanite of approximately 3.60 carats, the shoulders set with princess and round brilliant cut diamonds, stamped 18K, size J / 4.75, 5.7g. 

A TANZANITE AND DIAMOND RING set with a mixed cut tanzanite of approximately 3.60 carats, the shoulders set with princess and round brilliant cut diamonds, stamped 18K, size J / 4.75, 5.7g. 

Estimate £600 - £800

LOT 26

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a round brilliant cut diamond of approximately 1.52 carats, stamped 585, size M1/2 / 6.5, 3.2g. Accompanied by a gemmological report stating that the diamond is E colour and SI1 clarity. 

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a round brilliant cut diamond of approximately 1.52 carats, stamped 585, size M1/2 / 6.5, 3.2g. Accompanied by a gemmological report stating that the diamond is E colour and SI1 clarity. 

Estimate £3,500 - £4,500

LOT 29

A DIAMOND CLUSTER RING set with an old cut cognac diamond of approximately 2.40 carats in a cluster of further old cut diamonds, no assay marks, size Q1/2 / 8.5, 5.1g. 

A DIAMOND CLUSTER RING set with an old cut cognac diamond of approximately 2.40 carats in a cluster of further old cut diamonds, no assay marks, size Q1/2 / 8.5, 5.1g. 

Estimate £2,000 - £3,000

LOT 33

MAUBOUSSIN, A BLUE CHALCEDONY AND DIAMOND DRESS RING in 18ct white gold, set with a polished blue chalcedony, with an applied X motif set with round brilliant cut diamonds, signed Mauboussin Paris, French assay marks, stamped 750, size L / 5.75, 12.7

MAUBOUSSIN, A BLUE CHALCEDONY AND DIAMOND DRESS RING in 18ct white gold, set with a polished blue chalcedony, with an applied X motif set with round brilliant cut diamonds, signed Mauboussin Paris, French assay marks, stamped 750, size L / 5.75, 12.7

Estimate £1,500 - £2,500

LOT 35

A DIAMOND HALF ETERNITY RING in platinum, set with a row of baguette cut diamonds between rows of round brilliant cut diamonds, the diamonds all totalling approximately 2.10 carats, full British hallmarks, size L / 5.75, 9.5g. 

A DIAMOND HALF ETERNITY RING in platinum, set with a row of baguette cut diamonds between rows of round brilliant cut diamonds, the diamonds all totalling approximately 2.10 carats, full British hallmarks, size L / 5.75, 9.5g. 

Estimate £2,000 - £3,000

LOT 37

CARTIER, AN OR ET ACIER RING in 18ct yellow gold and steel, comprising alternating sections of gold and steel wire around a gold band, signed Cartier and numbered, no assay marks, size M / 6.25, 5.9g. 

CARTIER, AN OR ET ACIER RING in 18ct yellow gold and steel, comprising alternating sections of gold and steel wire around a gold band, signed Cartier and numbered, no assay marks, size M / 6.25, 5.9g. 

Estimate £400 - £600

LOT 40

FERRAGAMO, A FIRE OPAL AND DIAMOND FLOWER RING in 18ct yellow gold, set with a round brilliant cut diamond and carved fire opal petals, signed Ferragamo, Italian assay marks, stamped 750, size J1/2 / 5, 4.4g. 

FERRAGAMO, A FIRE OPAL AND DIAMOND FLOWER RING in 18ct yellow gold, set with a round brilliant cut diamond and carved fire opal petals, signed Ferragamo, Italian assay marks, stamped 750, size J1/2 / 5, 4.4g. 

Estimate £500 - £700

LOT 42

A VINTAGE DIAMOND HORSESHOE RING in yellow gold, designed as a horseshoe set with eleven round brilliant cut diamonds, the diamonds all totalling 0.7-0.8 carats, no assay marks, size X / 11.5, 9.5g. 

A VINTAGE DIAMOND HORSESHOE RING in yellow gold, designed as a horseshoe set with eleven round brilliant cut diamonds, the diamonds all totalling 0.7-0.8 carats, no assay marks, size X / 11.5, 9.5g. 

Estimate £500 - £700

LOT 45

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of approximately 2.41 carats in a cluster of round brilliant cut diamonds, on a bifurcated band, full British hallmarks for Edinburgh 2006, size O / 7.25, 7.3g.

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of approximately 2.41 carats in a cluster of round brilliant cut diamonds, on a bifurcated band, full British hallmarks for Edinburgh 2006, size O / 7.25, 7.3g.

Estimate £600 - £800

LOT 46

AN ANTIQUE FRENCH PEARL AND DIAMOND RING in platinum, set with a pearl of 13.0mm accented by round cut diamonds, the shoulders set with further round cut diamonds, French assay marks, size M1/2 / 6.5, 4.8g. 

AN ANTIQUE FRENCH PEARL AND DIAMOND RING in platinum, set with a pearl of 13.0mm accented by round cut diamonds, the shoulders set with further round cut diamonds, French assay marks, size M1/2 / 6.5, 4.8g. 

Estimate £3,000 - £5,000

LOT 49

A DIAMOND CLUSTER RING the openwork face set with a cluster of old cut diamonds all totalling 2.2-2.4 carats, no assay marks, size O1/2 / 7.5, 4.0g. 

A DIAMOND CLUSTER RING the openwork face set with a cluster of old cut diamonds all totalling 2.2-2.4 carats, no assay marks, size O1/2 / 7.5, 4.0g. 

Estimate £500 - £700

LOT 52

A VINTAGE CORAL RING set with a polished coral of 12.9mm within a twisted rope work border, no assay marks, size N / 6.75, 9.1g. 

A VINTAGE CORAL RING set with a polished coral of 12.9mm within a twisted rope work border, no assay marks, size N / 6.75, 9.1g. 

Estimate £300 - £500

LOT 54

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut emerald of approximately 1.90 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N1/2 / 7, 6.2g. 

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut emerald of approximately 1.90 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N1/2 / 7, 6.2g. 

Estimate £800 - £1,200

LOT 57

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with an oval cabochon sapphire of approximately 7.01 carats in a cluster of round brilliant cut diamonds, A&B maker's mark, full British hallmarks, size S / 9.25, 16.4g. 

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with an oval cabochon sapphire of approximately 7.01 carats in a cluster of round brilliant cut diamonds, A&B maker's mark, full British hallmarks, size S / 9.25, 16.4g. 

Estimate £800 - £1,200

LOT 61

AN EMERALD AND DIAMOND THREE STONE RING set with a cushion cut emerald, accented on each side by a round brilliant cut diamond, stamped 24K, size M1/2 / 6.5, 6.2g. 

AN EMERALD AND DIAMOND THREE STONE RING set with a cushion cut emerald, accented on each side by a round brilliant cut diamond, stamped 24K, size M1/2 / 6.5, 6.2g. 

Estimate £600 - £800

LOT 63

A VINTAGE DIAMOND HALF ETERNITY RING in 18ct yellow gold, half set with a row of round brilliant cut diamonds, the diamonds totalling 1.3-1.5 carats, full British hallmarks for London 1977, size Q1/2 / 8.5, 4.5g. 

A VINTAGE DIAMOND HALF ETERNITY RING in 18ct yellow gold, half set with a row of round brilliant cut diamonds, the diamonds totalling 1.3-1.5 carats, full British hallmarks for London 1977, size Q1/2 / 8.5, 4.5g. 

Estimate £500 - £700

LOT 64

A RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut ruby of approximately 1.60 carats in a cluster of round brilliant cut diamonds, the shoulders set with further diamonds, partial British hallmarks, size N / 6.75, 4.0g. 

A RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut ruby of approximately 1.60 carats in a cluster of round brilliant cut diamonds, the shoulders set with further diamonds, partial British hallmarks, size N / 6.75, 4.0g. 

Estimate £1,000 - £1,500

LOT 66

A BLUE TOPAZ AND DIAMOND RING in 18ct yellow gold, set with a pear cut blue topaz of approximately 7.95 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.3-1.4 carats, full British hallmarks, size L / 5.75, 8.1g. 

A BLUE TOPAZ AND DIAMOND RING in 18ct yellow gold, set with a pear cut blue topaz of approximately 7.95 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.3-1.4 carats, full British hallmarks, size L / 5.75, 8.1g. 

Estimate £500 - £700

LOT 69

A RUBY AND DIAMOND RING in 18ct yellow gold, set with an oval cut ruby of approximately 1.81 carats, the bifurcated band set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 5.1g. 

A RUBY AND DIAMOND RING in 18ct yellow gold, set with an oval cut ruby of approximately 1.81 carats, the bifurcated band set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 5.1g. 

Estimate £1,200 - £1,800

LOT 72

AN ANTIQUE VICTORIAN DIAMOND AND ENAMEL MOURNING RING in 18ct yellow gold, comprising a floral motif set with an old cut diamond and black enamel petals, the ornate band decorated with forget-me-not motifs and further black enamel, inscribed 'Elizabe

AN ANTIQUE VICTORIAN DIAMOND AND ENAMEL MOURNING RING in 18ct yellow gold, comprising a floral motif set with an old cut diamond and black enamel petals, the ornate band decorated with forget-me-not motifs and further black enamel, inscribed 'Elizabe

Estimate £500 - £700

LOT 75

AN ANTIQUE DIAMOND THREE STONE RING in 18ct yellow gold, set with three old cut diamonds all totalling 0.6-0.7 carats, full British hallmarks for Birmingham 1908, size N / 6.75, 3.3g. 

AN ANTIQUE DIAMOND THREE STONE RING in 18ct yellow gold, set with three old cut diamonds all totalling 0.6-0.7 carats, full British hallmarks for Birmingham 1908, size N / 6.75, 3.3g. 

Estimate £200 - £300

LOT 76

AN ANTIQUE CAT'S EYE CHRYSOBERYL AND DIAMOND CLUSTER RING in yellow gold, set with a round cabochon cat's eye chrysoberyl in a cluster of old cut diamonds, no assay marks, size L1/2 / 6, 2.9g. 

AN ANTIQUE CAT'S EYE CHRYSOBERYL AND DIAMOND CLUSTER RING in yellow gold, set with a round cabochon cat's eye chrysoberyl in a cluster of old cut diamonds, no assay marks, size L1/2 / 6, 2.9g. 

Estimate £500 - £700

LOT 79

AN EMERALD AND DIAMOND THREE STONE RING set with an octagonal step cut emerald of 3.18 carats, accented on each side by a fancy cut diamond, the shoulders set with round cut diamonds, the diamonds totalling 0.64 carats, stamped 18K, size N / 6.75, 3.

AN EMERALD AND DIAMOND THREE STONE RING set with an octagonal step cut emerald of 3.18 carats, accented on each side by a fancy cut diamond, the shoulders set with round cut diamonds, the diamonds totalling 0.64 carats, stamped 18K, size N / 6.75, 3.

Estimate £2,500 - £3,500

LOT 82

AN ANTIQUE EMERALD AND DIAMOND RING in yellow gold, set with three octagonal step cut emeralds accented by pairs of rose cut diamonds, no assay marks, size L / 5.75, 1.5g. 

AN ANTIQUE EMERALD AND DIAMOND RING in yellow gold, set with three octagonal step cut emeralds accented by pairs of rose cut diamonds, no assay marks, size L / 5.75, 1.5g. 

Estimate £200 - £300

LOT 85

A GOLD SIGNET RING in 18ct yellow and white gold, with a blank white gold seal and stylised shoulders, French import marks, size S1/2 / 9.5, 10.9g. 

A GOLD SIGNET RING in 18ct yellow and white gold, with a blank white gold seal and stylised shoulders, French import marks, size S1/2 / 9.5, 10.9g. 

Estimate £1,000 - £1,500

LOT 86

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a princess cut diamond of 0.71 carats, the band set with round brilliant cut diamonds, stamped 14K, size L1/2 / 6, 2.7g. Accompanied by a gemmological report stating that the principal diamond is F-G colou

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a princess cut diamond of 0.71 carats, the band set with round brilliant cut diamonds, stamped 14K, size L1/2 / 6, 2.7g. Accompanied by a gemmological report stating that the principal diamond is F-G colou

Estimate £400 - £600

LOT 89

A TURQUOISE DRESS RING in 9ct yellow gold, the domed face set with cabochon turquoise, full British hallmarks, size N1/2 / 7, 5.5g. 

A TURQUOISE DRESS RING in 9ct yellow gold, the domed face set with cabochon turquoise, full British hallmarks, size N1/2 / 7, 5.5g. 

Estimate £200 - £300

LOT 91

A PEARL AND DIAMOND DRESS RING set with a pearl of 9.1mm, in a stylised border set with tapered baguette cut diamonds, stamped 10% IRID PLAT, size N / 6.75, 7.7g.

A PEARL AND DIAMOND DRESS RING set with a pearl of 9.1mm, in a stylised border set with tapered baguette cut diamonds, stamped 10% IRID PLAT, size N / 6.75, 7.7g.

Estimate £4,000 - £6,000

LOT 96

AN EMERALD AND DIAMOND CLUSTER RING in platinum, set with an octagonal set cut emerald of approximately 3.86 carats in a cluster of round brilliant and princess cut diamonds, the shoulders accented by further round brilliant cut diamonds, partial Bri

AN EMERALD AND DIAMOND CLUSTER RING in platinum, set with an octagonal set cut emerald of approximately 3.86 carats in a cluster of round brilliant and princess cut diamonds, the shoulders accented by further round brilliant cut diamonds, partial Bri

Estimate £3,000 - £5,000

LOT 98

PIAGET, A DIAMOND RING in a stylised crossover design, set with round brilliant cut diamonds all totalling 2.0-2.2 carats, signed Piaget and numbered, stamped 750, size K1/2 / 5.5, 17.1g. 

PIAGET, A DIAMOND RING in a stylised crossover design, set with round brilliant cut diamonds all totalling 2.0-2.2 carats, signed Piaget and numbered, stamped 750, size K1/2 / 5.5, 17.1g. 

Estimate £2,000 - £3,000

LOT 101

AN EMERALD, SAPPHIRE AND DIAMOND CROSSOVER RING set with an octagonal step cut emerald of 1.07 carats and octagonal step cut sapphire of 1.37 carats, accented by round brilliant and baguette cut diamonds, the diamonds totalling 1.04 carats, stamped 7

AN EMERALD, SAPPHIRE AND DIAMOND CROSSOVER RING set with an octagonal step cut emerald of 1.07 carats and octagonal step cut sapphire of 1.37 carats, accented by round brilliant and baguette cut diamonds, the diamonds totalling 1.04 carats, stamped 7

Estimate £2,000 - £3,000

LOT 104

A DIAMOND DRESS RING set with a marquise cut diamond of approximately 0.50 carats, accented by rows of round brilliant and baguette cut diamonds, stamped 585, size N / 6.75, 9.1g. 

A DIAMOND DRESS RING set with a marquise cut diamond of approximately 0.50 carats, accented by rows of round brilliant and baguette cut diamonds, stamped 585, size N / 6.75, 9.1g. 

Estimate £400 - £600

LOT 106

AN EMERALD RING in 14ct yellow gold, set with an octagonal step cut emerald, partial British hallmarks, size O / 7.25, 2.6g. 

AN EMERALD RING in 14ct yellow gold, set with an octagonal step cut emerald, partial British hallmarks, size O / 7.25, 2.6g. 

Estimate £200 - £300

LOT 109

DORIS PANOS, A KUNZITE AND DIAMOND DRESS RING set with a cushion cut kunzite of approximately 19.15 carats accented by rows of round brilliant cut diamonds, the stylised band set with further round brilliant cut diamonds, Doris Panos maker's mark, st

DORIS PANOS, A KUNZITE AND DIAMOND DRESS RING set with a cushion cut kunzite of approximately 19.15 carats accented by rows of round brilliant cut diamonds, the stylised band set with further round brilliant cut diamonds, Doris Panos maker's mark, st

Estimate £1,500 - £2,500

LOT 111

A RUBELLITE TOURMALINE AND DIAMOND RING in 18ct white gold, set with an oval cut rubellite tourmaline of approximately 8.33 carats, the bifurcated band set with round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 6.1g. 

A RUBELLITE TOURMALINE AND DIAMOND RING in 18ct white gold, set with an oval cut rubellite tourmaline of approximately 8.33 carats, the bifurcated band set with round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 6.1g. 

Estimate £1,200 - £1,800

LOT 114

A MULTI GEM DRESS RING pave set with round cut sapphires, blue topaz, peridot and tsavorite garnets, in a border of round brilliant cut diamonds, stamped 750, size M1/2 / 6.5, 20.8g. 

A MULTI GEM DRESS RING pave set with round cut sapphires, blue topaz, peridot and tsavorite garnets, in a border of round brilliant cut diamonds, stamped 750, size M1/2 / 6.5, 20.8g. 

Estimate £2,000 - £3,000

LOT 116

A VINTAGE SAPPHIRE AND DIAMOND BOMBE RING, 1970S designed as a stylised floral cluster, set with an oval cut sapphire of approximately 3.36 carats in a cluster of marquise cut diamonds, accented by further marquise, pear and round brilliant cut diamo

A VINTAGE SAPPHIRE AND DIAMOND BOMBE RING, 1970S designed as a stylised floral cluster, set with an oval cut sapphire of approximately 3.36 carats in a cluster of marquise cut diamonds, accented by further marquise, pear and round brilliant cut diamo

Estimate £5,000 - £7,000

LOT 121

AN ART DECO PEARL AND DIAMOND RING set with a pearl of 10.4mm, the stepped shoulders set with single cut diamonds, no assay marks, size L / 5.75, 5.1g. 

AN ART DECO PEARL AND DIAMOND RING set with a pearl of 10.4mm, the stepped shoulders set with single cut diamonds, no assay marks, size L / 5.75, 5.1g. 

Estimate £2,000 - £3,000

LOT 123

AN ANTIQUE DIAMOND RING in 18ct yellow gold, set with a cluster of old cut diamonds, stamped 18C, size M / 6.25, 3.3g. 

AN ANTIQUE DIAMOND RING in 18ct yellow gold, set with a cluster of old cut diamonds, stamped 18C, size M / 6.25, 3.3g. 

Estimate £250 - £350

LOT 127

A DIAMOND CORONET RING designed as a coronet set with rose cut diamonds, stamped 925, size P / 7.75, 3.6g. 

A DIAMOND CORONET RING designed as a coronet set with rose cut diamonds, stamped 925, size P / 7.75, 3.6g. 

Estimate £150 - £250

LOT 129

A SAPPHIRE RING in 14ct yellow gold, set with an octagonal step cut sapphire, partial British hallmarks, size Q1/2 / 8.5, 5.0g. 

A SAPPHIRE RING in 14ct yellow gold, set with an octagonal step cut sapphire, partial British hallmarks, size Q1/2 / 8.5, 5.0g. 

Estimate £250 - £350

LOT 132

A DIAMOND RING set with a polki cut diamond, no assay marks, size N / 6.75, 1.4g. 

A DIAMOND RING set with a polki cut diamond, no assay marks, size N / 6.75, 1.4g. 

Estimate £80 - £120

LOT 135

AN EMERALD AND DIAMOND DRESS RING set with oval cabochon emeralds accented by round brilliant cut diamonds, stamped 750, size N / 6.75, 16.4g.

AN EMERALD AND DIAMOND DRESS RING set with oval cabochon emeralds accented by round brilliant cut diamonds, stamped 750, size N / 6.75, 16.4g.

Estimate £1,500 - £2,500

LOT 136

A FINE 2.05 CARAT H COLOUR SOLITAIRE DIAMOND RING set with a princess cut diamond of 2.05 carats, stamped PLAT, size J / 4.75, 3.7g. Accompanied by a GIA report stating the diamond is H colour and VS1 clarity. 

A FINE 2.05 CARAT H COLOUR SOLITAIRE DIAMOND RING set with a princess cut diamond of 2.05 carats, stamped PLAT, size J / 4.75, 3.7g. Accompanied by a GIA report stating the diamond is H colour and VS1 clarity. 

Estimate £5,000 - £7,000

LOT 138

AN ART DECO RUBY AND DIAMOND RING set with an oval cabochon ruby of approximately 7.10 carats in a border of single cut diamonds, accented by baguette cut diamonds, no assay marks, size J / 4.75, 6.5g.

AN ART DECO RUBY AND DIAMOND RING set with an oval cabochon ruby of approximately 7.10 carats in a border of single cut diamonds, accented by baguette cut diamonds, no assay marks, size J / 4.75, 6.5g.

Estimate £10,000 - £15,000

LOT 141

AN ANTIQUE DIAMOND NAVETTE RING in 18ct yellow gold, the navette shaped face set with a cluster of old cut diamonds, the diamonds all totalling 1.2-1.4 carats, stamped 750, size M / 6.25, 3.8g. 

AN ANTIQUE DIAMOND NAVETTE RING in 18ct yellow gold, the navette shaped face set with a cluster of old cut diamonds, the diamonds all totalling 1.2-1.4 carats, stamped 750, size M / 6.25, 3.8g. 

Estimate £500 - £700

LOT 143

AN EMERALD AND DIAMOND CLUSTER RING set with a round cabochon emerald of approximately 1.46 carats in a cluster of round brilliant cut diamonds, no assay marks, size K / 5.25, 6.7g. 

AN EMERALD AND DIAMOND CLUSTER RING set with a round cabochon emerald of approximately 1.46 carats in a cluster of round brilliant cut diamonds, no assay marks, size K / 5.25, 6.7g. 

Estimate £350 - £550

LOT 145

A RUBY AND DIAMOND BAND RING set with an oval cabochon ruby accented on each side by a round brilliant cut diamond, stamped 18K, size U / 10.25, 6.4g. 

A RUBY AND DIAMOND BAND RING set with an oval cabochon ruby accented on each side by a round brilliant cut diamond, stamped 18K, size U / 10.25, 6.4g. 

Estimate £300 - £500

LOT 147

AN ITALIAN ENAMEL BAND RING in 18ct yellow gold, the wide band decorated with teal blue enamel, accented by gold rings, Italian assay marks, stamped 750, size O1/2 / 7.5, 18.2g. 

AN ITALIAN ENAMEL BAND RING in 18ct yellow gold, the wide band decorated with teal blue enamel, accented by gold rings, Italian assay marks, stamped 750, size O1/2 / 7.5, 18.2g. 

Estimate £1,000 - £1,500

LOT 148

AN F COLOUR SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 0.50 carats, the band accented by two rows of round brilliant cut diamonds, partial British hallmarks, size M / 6.25, 2.9g. Accompanied by a GIA repo

AN F COLOUR SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 0.50 carats, the band accented by two rows of round brilliant cut diamonds, partial British hallmarks, size M / 6.25, 2.9g. Accompanied by a GIA repo

Estimate £400 - £600

LOT 150

A 7.36 CARAT OPAL AND DIAMOND RING in 18ct yellow gold, set with an oval cabochon opal of 7.36 carats, accented by baguette cut diamonds, partial British hallmarks, size P1/2 / 8, 5.6g.

A 7.36 CARAT OPAL AND DIAMOND RING in 18ct yellow gold, set with an oval cabochon opal of 7.36 carats, accented by baguette cut diamonds, partial British hallmarks, size P1/2 / 8, 5.6g.

Estimate £800 - £1,200

LOT 151

MAUBOUSSIN, AN AMETHYST AND DIAMOND DRESS RING in 18ct white gold, set with a fancy oval cut amethyst, the shoulders set with sections of round brilliant cut diamonds, signed Mauboussin Paris and numbered, French assay marks, stamped 750, size J1/2 /

MAUBOUSSIN, AN AMETHYST AND DIAMOND DRESS RING in 18ct white gold, set with a fancy oval cut amethyst, the shoulders set with sections of round brilliant cut diamonds, signed Mauboussin Paris and numbered, French assay marks, stamped 750, size J1/2 /

Estimate £1,500 - £2,500

LOT 154

MAPPIN AND WEBB, AN EMERALD AND DIAMOND RING in 18ct white gold, set with a round cut emerald in a halo of round brilliant cut diamonds, further diamonds set to the band, inscribed DIA 0.30, signed M&W, partial British hallmarks, stamped 750, size L

MAPPIN AND WEBB, AN EMERALD AND DIAMOND RING in 18ct white gold, set with a round cut emerald in a halo of round brilliant cut diamonds, further diamonds set to the band, inscribed DIA 0.30, signed M&W, partial British hallmarks, stamped 750, size L

Estimate £800 - £1,200

LOT 157

CHIMENTO, AN AMETHYST AND DIAMOND RING in 18ct white gold, set with a round cabochon amethyst, accented by pave set round brilliant cut diamonds, signed Chimento, Italian assay marks, stamped 750, size M1/2 / 6.5, 7.1g. 

CHIMENTO, AN AMETHYST AND DIAMOND RING in 18ct white gold, set with a round cabochon amethyst, accented by pave set round brilliant cut diamonds, signed Chimento, Italian assay marks, stamped 750, size M1/2 / 6.5, 7.1g. 

Estimate £700 - £900

LOT 159

A PINK SAPPHIRE AND DIAMOND RING set with an oval cut pink sapphire of 0.86 carats in a cluster of round brilliant cut diamonds, each shoulder set with a tapered baguette cut diamond, the diamonds all totalling 0.50 carats, inscribed 0.86 D0.50, stam

A PINK SAPPHIRE AND DIAMOND RING set with an oval cut pink sapphire of 0.86 carats in a cluster of round brilliant cut diamonds, each shoulder set with a tapered baguette cut diamond, the diamonds all totalling 0.50 carats, inscribed 0.86 D0.50, stam

Estimate £800 - £1,200

LOT 162

A CORAL, ONYX AND DIAMOND DRESS RING the oval face comprising polished onyx set with an oval cabochon coral, accented by borders of round cut diamonds, the bifurcated band set with further round cut diamonds, no assay marks, size N1/2 / 7, 7.3g.

A CORAL, ONYX AND DIAMOND DRESS RING the oval face comprising polished onyx set with an oval cabochon coral, accented by borders of round cut diamonds, the bifurcated band set with further round cut diamonds, no assay marks, size N1/2 / 7, 7.3g.

Estimate £250 - £350

LOT 165

A DIAMOND THREE STONE RING set with three round brilliant cut diamonds in star shaped borders, stamped 18CT, size S / 9.25, 7.7g. 

A DIAMOND THREE STONE RING set with three round brilliant cut diamonds in star shaped borders, stamped 18CT, size S / 9.25, 7.7g. 

Estimate £400 - £600

LOT 167

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of approximately 2.56 carats accented by rows of round brilliant cut diamonds, stamped 750, size V1/2 / 11, 15.4g. 

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of approximately 2.56 carats accented by rows of round brilliant cut diamonds, stamped 750, size V1/2 / 11, 15.4g. 

Estimate £800 - £1,200

LOT 169

A GOLDEN MOTHER OF PEARL, DIAMOND AND RUBY BUTTERFLY RING the wings set with golden mother of pearl and accented by round brilliant cut diamonds, the antennae set with round cut rubies, stamped K18, size N1/2 / 7, 7.9g. 

A GOLDEN MOTHER OF PEARL, DIAMOND AND RUBY BUTTERFLY RING the wings set with golden mother of pearl and accented by round brilliant cut diamonds, the antennae set with round cut rubies, stamped K18, size N1/2 / 7, 7.9g. 

Estimate £800 - £1,200

LOT 171

A 4.41 CARAT COLOUR CHANGE GARNET AND DIAMOND RING in 18ct yellow gold, set with a cushion cut colour change garnet of 4.41 carats in a border of round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 7.4g.

A 4.41 CARAT COLOUR CHANGE GARNET AND DIAMOND RING in 18ct yellow gold, set with a cushion cut colour change garnet of 4.41 carats in a border of round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 7.4g.

Estimate £1,200 - £1,600

LOT 174

A MODERNIST EMERALD AND DIAMOND RING in 18ct yellow and white gold, set with a rectangular step cut emerald accented by trios of round brilliant cut diamonds, RH&B maker's mark, full British hallmarks for Birmingham 1976, size M / 6.25, 10.3g.

A MODERNIST EMERALD AND DIAMOND RING in 18ct yellow and white gold, set with a rectangular step cut emerald accented by trios of round brilliant cut diamonds, RH&B maker's mark, full British hallmarks for Birmingham 1976, size M / 6.25, 10.3g.

Estimate £450 - £550

LOT 176

A RUBELLITE TOURMALINE AND DIAMOND RING set with a facetted rubellite tourmaline of approximately 20.00 carats in a border of round brilliant cut diamonds, stamped 750, size O / 7.25, 20.5g. 

A RUBELLITE TOURMALINE AND DIAMOND RING set with a facetted rubellite tourmaline of approximately 20.00 carats in a border of round brilliant cut diamonds, stamped 750, size O / 7.25, 20.5g. 

Estimate £6,000 - £8,000

LOT 179

A VINTAGE TURQUOISE DRESS RING in 18ct yellow gold, set with a cabochon turquoise, stamped 18ct, size J / 4.75, 4.7g. 

A VINTAGE TURQUOISE DRESS RING in 18ct yellow gold, set with a cabochon turquoise, stamped 18ct, size J / 4.75, 4.7g. 

Estimate £200 - £300

LOT 183

AN EMERALD BAND RING set with an octagonal step cut emerald, stamped 18Kt, size R / 8.75, 5.8g.

AN EMERALD BAND RING set with an octagonal step cut emerald, stamped 18Kt, size R / 8.75, 5.8g.

Estimate £250 - £350

LOT 186

AN ANTIQUE EMERALD AND OPAL CLUSTER RING in 9ct yellow gold, set with a cushion cut emerald in a cluster of cabochon opals, partial British hallmarks, size I1/2 / 4.5, 0.9g. 

AN ANTIQUE EMERALD AND OPAL CLUSTER RING in 9ct yellow gold, set with a cushion cut emerald in a cluster of cabochon opals, partial British hallmarks, size I1/2 / 4.5, 0.9g. 

Estimate £100 - £150

LOT 188

A RETRO REVERSIBLE SAPPHIRE, RUBY AND DIAMOND RING in 14ct rose gold, comprising a reversible section set to one side with rows of square step cut sapphires and single cut diamonds, the other side set with square step cut rubies and single cut diamon

A RETRO REVERSIBLE SAPPHIRE, RUBY AND DIAMOND RING in 14ct rose gold, comprising a reversible section set to one side with rows of square step cut sapphires and single cut diamonds, the other side set with square step cut rubies and single cut diamon

Estimate £800 - £1,200

LOT 191

AN ANTIQUE OPAL RING in yellow gold, set with an oval cabochon opal, no assay marks, size L1/2 / 6, 4.3g. 

AN ANTIQUE OPAL RING in yellow gold, set with an oval cabochon opal, no assay marks, size L1/2 / 6, 4.3g. 

Estimate £300 - £500

LOT 193

A SAPPHIRE AND DIAMOND CLUSTER RING in 9ct yellow and white gold, set with an oval cut sapphire of approximately 1.00 carat in a cluster of single cut diamonds, full British hallmarks, size Q / 8.25, 2.7g. 

A SAPPHIRE AND DIAMOND CLUSTER RING in 9ct yellow and white gold, set with an oval cut sapphire of approximately 1.00 carat in a cluster of single cut diamonds, full British hallmarks, size Q / 8.25, 2.7g. 

Estimate £300 - £500

LOT 196

STEPHEN WEBSTER, A DIAMOND DRESS RING the engraved ring set with an open circle of round brilliant cut diamonds, shield shaped motifs set to the shoulders, Stephen Webster maker's mark, stamped 750, size T / 9.75, 20.6g. 

STEPHEN WEBSTER, A DIAMOND DRESS RING the engraved ring set with an open circle of round brilliant cut diamonds, shield shaped motifs set to the shoulders, Stephen Webster maker's mark, stamped 750, size T / 9.75, 20.6g. 

Estimate £1,500 - £2,500

LOT 199

AN EMERALD AND DIAMOND DRESS RING set with oval cabochon emerald of 27.75 carats in a border of round brilliant cut diamonds, the diamonds all totalling 1.00 carat, inscribed 27.75 D1.00, stamped Pt900, size L1/2 / 6, 28.0g. 

AN EMERALD AND DIAMOND DRESS RING set with oval cabochon emerald of 27.75 carats in a border of round brilliant cut diamonds, the diamonds all totalling 1.00 carat, inscribed 27.75 D1.00, stamped Pt900, size L1/2 / 6, 28.0g. 

Estimate £6,000 - £8,000

LOT 201

A D COLOUR SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 0.50 carats, the band accented by further round brilliant cut diamonds, full British hallmarks, size M / 6.25, 3.9g. Accompanied by a GIA report stati

A D COLOUR SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 0.50 carats, the band accented by further round brilliant cut diamonds, full British hallmarks, size M / 6.25, 3.9g. Accompanied by a GIA report stati

Estimate £400 - £600

LOT 203

A GREEN SYNTHETIC SPINEL RING in yellow gold, set with an oval cut green synthetic spinel, no assay marks, size S1/2 / 9.25, 8.2g. 

A GREEN SYNTHETIC SPINEL RING in yellow gold, set with an oval cut green synthetic spinel, no assay marks, size S1/2 / 9.25, 8.2g. 

Estimate £200 - £300

LOT 206

AN EMERALD AND DIAMOND THREE STONE RING in platinum, set with an octagonal step cut emerald of 2.32 carats, accented on each side by a trapezoid cut diamond, the diamonds both totalling 0.71 carats, full British hallmarks, size M / 6.25, 7.3g. 

AN EMERALD AND DIAMOND THREE STONE RING in platinum, set with an octagonal step cut emerald of 2.32 carats, accented on each side by a trapezoid cut diamond, the diamonds both totalling 0.71 carats, full British hallmarks, size M / 6.25, 7.3g. 

Estimate £4,000 - £6,000

LOT 210

A TURQUOISE AND DIAMOND DRESS RING set to the centre with a cabochon cut turquoise in a double border of round brilliant cut diamonds, stamped 14K, N / 6.75, 3.5g. 

A TURQUOISE AND DIAMOND DRESS RING set to the centre with a cabochon cut turquoise in a double border of round brilliant cut diamonds, stamped 14K, N / 6.75, 3.5g. 

Estimate £600 - £800

LOT 211

ATTR. WENDY YUE, A JADEITE JADE, SAPPHIRE AND DIAMOND DRESS RING designed as a phoenix pave set with round cut blue, pink and yellow sapphires, the eye and crest set with round brilliant cut diamonds and round cut tsavorite garnets, accented by a car

ATTR. WENDY YUE, A JADEITE JADE, SAPPHIRE AND DIAMOND DRESS RING designed as a phoenix pave set with round cut blue, pink and yellow sapphires, the eye and crest set with round brilliant cut diamonds and round cut tsavorite garnets, accented by a car

Estimate £2,500 - £3,500

LOT 213

ASTLEY CLARKE, A RUTILATED QUARTZ AND COLOURED DIAMOND EMPEROR MOTH RING designed as a pair of moths, set with a marquise shaped rutilated quartz, the wings set with round cut diamonds, and round cut yellow and black diamonds, stamped 925, size N / 6

ASTLEY CLARKE, A RUTILATED QUARTZ AND COLOURED DIAMOND EMPEROR MOTH RING designed as a pair of moths, set with a marquise shaped rutilated quartz, the wings set with round cut diamonds, and round cut yellow and black diamonds, stamped 925, size N / 6

Estimate £400 - £600

LOT 215

AN AQUAMARINE AND DIAMOND DRESS RING set with an oval cut aquamarine of approximately 4.80 carats in an openwork border set with round and baguette cut diamonds, the diamonds all totalling 0.6-0.7 carats, stamped 925, size O1/2 / 7.5, 7.0g. 

AN AQUAMARINE AND DIAMOND DRESS RING set with an oval cut aquamarine of approximately 4.80 carats in an openwork border set with round and baguette cut diamonds, the diamonds all totalling 0.6-0.7 carats, stamped 925, size O1/2 / 7.5, 7.0g. 

Estimate £350 - £550

LOT 219

A RETRO SYNTHETIC RUBY AND DIAMOND RING in yellow gold, set with three old cut diamonds, the shoulders set with rectangular step cut synthetic rubies, no assay marks, size P / 7.75, 9.4g. 

A RETRO SYNTHETIC RUBY AND DIAMOND RING in yellow gold, set with three old cut diamonds, the shoulders set with rectangular step cut synthetic rubies, no assay marks, size P / 7.75, 9.4g. 

Estimate £400 - £600

LOT 220

A SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with an oval cut sapphire of approximately 3.55 carats, accented on each side by a round brilliant cut diamond, the diamonds both totalling approximately 0.7-0.8 carats, full British hallmarks,

A SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with an oval cut sapphire of approximately 3.55 carats, accented on each side by a round brilliant cut diamond, the diamonds both totalling approximately 0.7-0.8 carats, full British hallmarks,

Estimate £5,000 - £7,000

LOT 223

AN EMERALD AND DIAMOND CLUSTER RING set with an oval cut emerald of approximately 1.96 carats in a cluster of round brilliant and tapered baguette cut diamonds, the diamonds totalling 2.0-2.2 carats, stamped 18KT, size O / 7.25, 8.5g. 

AN EMERALD AND DIAMOND CLUSTER RING set with an oval cut emerald of approximately 1.96 carats in a cluster of round brilliant and tapered baguette cut diamonds, the diamonds totalling 2.0-2.2 carats, stamped 18KT, size O / 7.25, 8.5g. 

Estimate £1,500 - £2,500

LOT 225

A RUBELLITE TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with a cushion cut rubellite tourmaline of approximately 7.45 carats, the shoulders set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 6.0g. 

A RUBELLITE TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with a cushion cut rubellite tourmaline of approximately 7.45 carats, the shoulders set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 6.0g. 

Estimate £1,000 - £1,500

LOT 226

AN INDICOLITE TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with an octagonal step cut indicolite tourmaline of approximately 6.74 carats, the openwork gallery set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 11

AN INDICOLITE TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with an octagonal step cut indicolite tourmaline of approximately 6.74 carats, the openwork gallery set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 11

Estimate £1,500 - £2,500

LOT 228

AN AQUAMARINE, DIAMOND AND SAPPHIRE DRESS RING set with a pear shaped cabochon aquamarine in a cluster of round brilliant cut diamonds, in a stylised border set with round cut blue and pink sapphires, no assay marks, size M / 6.25, 12.6g.

AN AQUAMARINE, DIAMOND AND SAPPHIRE DRESS RING set with a pear shaped cabochon aquamarine in a cluster of round brilliant cut diamonds, in a stylised border set with round cut blue and pink sapphires, no assay marks, size M / 6.25, 12.6g.

Estimate £800 - £1,200

LOT 230

A YELLOW SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut yellow sapphire of approximately 7.86 carats in a cluster of round brilliant and baguette cut diamonds, stamped 750, size N1/2 / 7, 7.9g. 

A YELLOW SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut yellow sapphire of approximately 7.86 carats in a cluster of round brilliant and baguette cut diamonds, stamped 750, size N1/2 / 7, 7.9g. 

Estimate £2,500 - £3,500

LOT 231

CARTIER, A DIAMOND FULL ETERNITY RING in 18ct yellow gold, set all around with a row of carre cut diamonds, the diamonds all totalling approximately 1.00 carat, signed Cartier and numbered, French assay marks, stamped 750, size N1/2 / 7, 5.0g. Accomp

CARTIER, A DIAMOND FULL ETERNITY RING in 18ct yellow gold, set all around with a row of carre cut diamonds, the diamonds all totalling approximately 1.00 carat, signed Cartier and numbered, French assay marks, stamped 750, size N1/2 / 7, 5.0g. Accomp

Estimate £4,000 - £6,000

LOT 233

GUBELIN, A DIAMOND DRESS RING in 18ct white gold, the round pierced face set with rows of round brilliant cut diamonds, the diamonds all totalling 0.74 carats, stamped 750, size N / 6.75, 11.7g. 

GUBELIN, A DIAMOND DRESS RING in 18ct white gold, the round pierced face set with rows of round brilliant cut diamonds, the diamonds all totalling 0.74 carats, stamped 750, size N / 6.75, 11.7g. 

Estimate £600 - £800

LOT 234

A PINK SAPPHIRE AND COGNAC DIAMOND FLOWER RING designed as a flower set with a cluster of round brilliant cut cognac diamonds, the petals set with round cut pink sapphires of various shades, stamped 750, size M / 6.25, 17.3g. 

A PINK SAPPHIRE AND COGNAC DIAMOND FLOWER RING designed as a flower set with a cluster of round brilliant cut cognac diamonds, the petals set with round cut pink sapphires of various shades, stamped 750, size M / 6.25, 17.3g. 

Estimate £2,000 - £3,000

LOT 237

A SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut sapphire of approximately 2.63 carats in a cluster of old cut diamonds, the shoulders set with further old cut diamonds, the diamonds all totalling 1.3-1.4 carats, stamped PLAT 18CT, size K /

A SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut sapphire of approximately 2.63 carats in a cluster of old cut diamonds, the shoulders set with further old cut diamonds, the diamonds all totalling 1.3-1.4 carats, stamped PLAT 18CT, size K /

Estimate £800 - £1,200

LOT 239

A 3.00 CARAT TSAVORITE GARNET AND DIAMOND RING in 18ct yellow gold, set with a cushion cut tsavorite garnet of 3.00 carats, the shoulders set with round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 6.7g.

A 3.00 CARAT TSAVORITE GARNET AND DIAMOND RING in 18ct yellow gold, set with a cushion cut tsavorite garnet of 3.00 carats, the shoulders set with round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 6.7g.

Estimate £2,500 - £3,500

LOT 241

AN ORANGE SAPPHIRE AND DIAMOND DRESS RING in scalloped design, set with oval and round cut orange sapphires, accented by rows of round brilliant cut cognac diamonds, stamped 18K 750, size N1/2 / 7, 15.8g. 

AN ORANGE SAPPHIRE AND DIAMOND DRESS RING in scalloped design, set with oval and round cut orange sapphires, accented by rows of round brilliant cut cognac diamonds, stamped 18K 750, size N1/2 / 7, 15.8g. 

Estimate £1,000 - £1,500

LOT 243

AN EMERALD AND DIAMOND RING the tapering band set with an oval cut emerald in a border of round brilliant cut diamonds, stamped 750, size R1/2 / 9, 8.1g. 

AN EMERALD AND DIAMOND RING the tapering band set with an oval cut emerald in a border of round brilliant cut diamonds, stamped 750, size R1/2 / 9, 8.1g. 

Estimate £500 - £700

LOT 245

A CITRINE AND DIAMOND DRESS RING in 9ct white gold, set with an oval cut citrine of approximately 26.77 carats, the mount set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 10.8g.

A CITRINE AND DIAMOND DRESS RING in 9ct white gold, set with an oval cut citrine of approximately 26.77 carats, the mount set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 10.8g.

Estimate £600 - £800

LOT 247

AN ONYX RING / PENDANT in hexagonal design set on both sides with polished onyx, stamped 18K, 2.3cm, size K1/2 / 5.5, 4.0g.

AN ONYX RING / PENDANT in hexagonal design set on both sides with polished onyx, stamped 18K, 2.3cm, size K1/2 / 5.5, 4.0g.

Estimate £400 - £600

LOT 250

A DIAMOND DRESS RING the tapering hammered gold band accented by rows of intersecting round brilliant cut diamonds, inscribed D0.30, stamped K18, size L1/2 / 6, 9.7g. 

A DIAMOND DRESS RING the tapering hammered gold band accented by rows of intersecting round brilliant cut diamonds, inscribed D0.30, stamped K18, size L1/2 / 6, 9.7g. 

Estimate £500 - £700

LOT 251

AN OPAL AND DIAMOND RING in 18ct yellow gold, set with an oval cabochon opal in a border of round brilliant cut diamonds, partial British hallmarks, size O / 7.25, 9.0g. 

AN OPAL AND DIAMOND RING in 18ct yellow gold, set with an oval cabochon opal in a border of round brilliant cut diamonds, partial British hallmarks, size O / 7.25, 9.0g. 

Estimate £500 - £700

LOT 253

GELLNER, A BAROQUE PEARL AND DIAMOND RING the abstract ring set with a baroque pearl and accented by round brilliant cut blue and white diamonds, signed Gellner, inscribed 0.71ct, stamped 750, size O1/2 / 7.5, 42.4g.

GELLNER, A BAROQUE PEARL AND DIAMOND RING the abstract ring set with a baroque pearl and accented by round brilliant cut blue and white diamonds, signed Gellner, inscribed 0.71ct, stamped 750, size O1/2 / 7.5, 42.4g.

Estimate £2,000 - £3,000

LOT 255

A BLACK OPAL, MULTICOLOUR SAPPHIRE AND DIAMOND DRESS RING set with an oval cabochon black opal of 8.18 carats, within a border of oval cut blue, green, yellow, pink and orange sapphires and round cut diamonds, the sapphires all totalling 2.83 carats,

A BLACK OPAL, MULTICOLOUR SAPPHIRE AND DIAMOND DRESS RING set with an oval cabochon black opal of 8.18 carats, within a border of oval cut blue, green, yellow, pink and orange sapphires and round cut diamonds, the sapphires all totalling 2.83 carats,

Estimate £400 - £600

LOT 257

A SYNTHETIC COLOUR SAPPHIRE RING in yellow gold, set with a round mixed cut synthetic colour change sapphire, no assay marks, size S1/2 / 9.25, 10.1g. 

A SYNTHETIC COLOUR SAPPHIRE RING in yellow gold, set with a round mixed cut synthetic colour change sapphire, no assay marks, size S1/2 / 9.25, 10.1g. 

Estimate £400 - £600

LOT 259

A COLOMBIAN EMERALD AND DIAMOND RING set with an octagonal step cut emerald of approximately 6.83 carats, accented by round brilliant and baguette cut diamonds, stamped 18K, size L / 5.75, 7.4g. With a gemmological verbal assessment stating that the

A COLOMBIAN EMERALD AND DIAMOND RING set with an octagonal step cut emerald of approximately 6.83 carats, accented by round brilliant and baguette cut diamonds, stamped 18K, size L / 5.75, 7.4g. With a gemmological verbal assessment stating that the

Estimate £3,000 - £5,000

LOT 261

NO RESERVE - A SAPPHIRE AND DIAMOND DRESS RING set with a cluster of marquise cut sapphires, accented by round brilliant cut diamonds, no assay marks, size P1/2 / 8, 7.0g. 

NO RESERVE - A SAPPHIRE AND DIAMOND DRESS RING set with a cluster of marquise cut sapphires, accented by round brilliant cut diamonds, no assay marks, size P1/2 / 8, 7.0g. 

Estimate £300 - £500

LOT 263

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum, set with a mixed cushion cut aquamarine of approximately 4.20 carats in a cluster of round brilliant cut diamonds, partial British hallmarks, size L / 5.75, 9.2g. 

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum, set with a mixed cushion cut aquamarine of approximately 4.20 carats in a cluster of round brilliant cut diamonds, partial British hallmarks, size L / 5.75, 9.2g. 

Estimate £3,000 - £4,000

LOT 265

CARTIER, A DIAMOND SIGNATURE RING in 18ct white gold, designed as the signature 'Cartier', set with round brilliant cut diamonds, signed Cartier and numbered, Italian assay marks, stamped 750, size K1/2 / 5.5, 4.3g. 

CARTIER, A DIAMOND SIGNATURE RING in 18ct white gold, designed as the signature 'Cartier', set with round brilliant cut diamonds, signed Cartier and numbered, Italian assay marks, stamped 750, size K1/2 / 5.5, 4.3g. 

Estimate £600 - £800

LOT 267

A PINK OPAL AND DIAMOND RING the stylised ring set with sections of polished pink opal, accented by round brilliant cut diamonds, stamped K18, size L / 5.75, 6.9g. 

A PINK OPAL AND DIAMOND RING the stylised ring set with sections of polished pink opal, accented by round brilliant cut diamonds, stamped K18, size L / 5.75, 6.9g. 

Estimate £600 - £800

LOT 269

A GARNET ETERNITY RING set all around with a row of round cabochon cut garnets, stamped 18K, size N / 6.75, 1.7g. 

A GARNET ETERNITY RING set all around with a row of round cabochon cut garnets, stamped 18K, size N / 6.75, 1.7g. 

Estimate £150 - £250

LOT 271

A RUBY AND DIAMOND RING in 18ct yellow gold, set with an oval cut ruby of approximately 1.71 carats, the bifurcated band set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 7.5g.

A RUBY AND DIAMOND RING in 18ct yellow gold, set with an oval cut ruby of approximately 1.71 carats, the bifurcated band set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 7.5g.

Estimate £1,500 - £2,500

LOT 273

AN EMERALD AND DIAMOND RING / PENDANT set with a cluster of variously cut emeralds in a halo of round cut diamonds, the shoulders accented by further round cut diamonds, the ring face articulated for the ring to be used as a pendant, stamped 18K750,

AN EMERALD AND DIAMOND RING / PENDANT set with a cluster of variously cut emeralds in a halo of round cut diamonds, the shoulders accented by further round cut diamonds, the ring face articulated for the ring to be used as a pendant, stamped 18K750,

Estimate £800 - £1,200

LOT 276

A SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with an oval cut sapphire of approximately 1.98 carats, accented by two half moon cut diamonds both totalling 0.57 carats, full British hallmarks, size M1/2 / 6.5, 5.4g. 

A SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with an oval cut sapphire of approximately 1.98 carats, accented by two half moon cut diamonds both totalling 0.57 carats, full British hallmarks, size M1/2 / 6.5, 5.4g. 

Estimate £4,000 - £6,000

LOT 278

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut sapphire of approximately 1.58 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N / 6.75, 5.4g. 

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut sapphire of approximately 1.58 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N / 6.75, 5.4g. 

Estimate £2,500 - £3,500

LOT 281

A GREEN TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with a mixed cut green tourmaline of approximately 5.80 carats, the shoulders set with round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 6.7g. 

A GREEN TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with a mixed cut green tourmaline of approximately 5.80 carats, the shoulders set with round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 6.7g. 

Estimate £800 - £1,200

LOT 286

AN OPAL AND DIAMOND CLUSTER RING

AN OPAL AND DIAMOND CLUSTER RING

Estimate £500 - £700

LOT 288

AN AQUAMARINE AND DIAMOND RING in platinum, set with an oval cut aquamarine of 4.65 carats in a cluster of round brilliant and princess cut diamonds, partial British hallmarks, size M / 6.25, 8.6g. 

AN AQUAMARINE AND DIAMOND RING in platinum, set with an oval cut aquamarine of 4.65 carats in a cluster of round brilliant and princess cut diamonds, partial British hallmarks, size M / 6.25, 8.6g. 

Estimate £3,000 - £4,000

LOT 290

NO RESERVE - A DIAMOND RING set with a polki cut diamond, no assay marks, size N1/2 / 7, 1.3g. 

NO RESERVE - A DIAMOND RING set with a polki cut diamond, no assay marks, size N1/2 / 7, 1.3g. 

Estimate £80 - £120

LOT 292

A RUBY AND DIAMOND CLUSTER RING set with an octagonal step cut ruby of 0.92 carats in a cluster of round cut diamonds, stamped 375, size N / 6.75, 3.0g. 

A RUBY AND DIAMOND CLUSTER RING set with an octagonal step cut ruby of 0.92 carats in a cluster of round cut diamonds, stamped 375, size N / 6.75, 3.0g. 

Estimate £250 - £350

LOT 295

A DIAMOND FLOWER RING set with a round brilliant cut diamond of approximately 0.46 carats in a border of tapered baguette cut diamonds, no assay marks, size I / 4.25, 7.7g. 

A DIAMOND FLOWER RING set with a round brilliant cut diamond of approximately 0.46 carats in a border of tapered baguette cut diamonds, no assay marks, size I / 4.25, 7.7g. 

Estimate £700 - £900

LOT 297

A RUBY RING set with a cabochon ruby carved to depict a leaf, no assay marks, size L1/2 / 6, 1.1g. 

A RUBY RING set with a cabochon ruby carved to depict a leaf, no assay marks, size L1/2 / 6, 1.1g. 

Estimate £80 - £120

LOT 299

A RUBY AND DIAMOND CLUSTER RING set with an oval cut ruby of approximately 0.90 carats in a double cluster of round brilliant cut diamonds, stamped 750, size P1/2 / 8, 3.6g. 

A RUBY AND DIAMOND CLUSTER RING set with an oval cut ruby of approximately 0.90 carats in a double cluster of round brilliant cut diamonds, stamped 750, size P1/2 / 8, 3.6g. 

Estimate £300 - £500

LOT 304

A SAPPHIRE FULL ETERNITY RING set all around with a row of square step cut sapphires, no assay marks, size M1/2 / 6.5, 2.8g. 

A SAPPHIRE FULL ETERNITY RING set all around with a row of square step cut sapphires, no assay marks, size M1/2 / 6.5, 2.8g. 

Estimate £300 - £500

LOT 307

A TANZANITE AND DIAMOND HALO RING in platinum, set with a cushion cut tanzanite of approximately 2.06 carats in a border of round brilliant cut diamonds, the shoulders set with further round brilliant cut diamonds, partial British hallmarks, size M /

A TANZANITE AND DIAMOND HALO RING in platinum, set with a cushion cut tanzanite of approximately 2.06 carats in a border of round brilliant cut diamonds, the shoulders set with further round brilliant cut diamonds, partial British hallmarks, size M /

Estimate £1,200 - £1,600

LOT 310

A PRASIOLITE RING in 9ct white gold, set with an oval cut prasiolite, partial British hallmarks, size I1/2 / 4.5, 6.0g. 

A PRASIOLITE RING in 9ct white gold, set with an oval cut prasiolite, partial British hallmarks, size I1/2 / 4.5, 6.0g. 

Estimate £150 - £250

LOT 313

A RUBY AND DIAMOND THREE STONE RING in 18ct white gold, set with an oval cut ruby of approximately 1.85 carats, accented by two round brilliant cut diamonds, full British hallmarks, size L1/2 / 6, 3.3g. 

A RUBY AND DIAMOND THREE STONE RING in 18ct white gold, set with an oval cut ruby of approximately 1.85 carats, accented by two round brilliant cut diamonds, full British hallmarks, size L1/2 / 6, 3.3g. 

Estimate £1,500 - £2,500

LOT 316

A RUBY AND DIAMOND CLUSTER RING set with an oval cut ruby of 0.65 carats in a cluster of round brilliant cut diamonds all totalling 0.60 carats, inscribed 0.65 D0.60, stamped PT900, size K / 5.25, 5.8g. 

A RUBY AND DIAMOND CLUSTER RING set with an oval cut ruby of 0.65 carats in a cluster of round brilliant cut diamonds all totalling 0.60 carats, inscribed 0.65 D0.60, stamped PT900, size K / 5.25, 5.8g. 

Estimate £800 - £1,200

LOT 320

AN INDIAN DIAMOND AND ENAMEL RING set with a flat cut diamond in a border of red and white enamel, accented by further rose cut diamonds, no assay marks, size N / 6.75, 7.3g. 

AN INDIAN DIAMOND AND ENAMEL RING set with a flat cut diamond in a border of red and white enamel, accented by further rose cut diamonds, no assay marks, size N / 6.75, 7.3g. 

Estimate £120 - £160

LOT 323

A BLUE PASTE AND EMERALD CLUSTER RING in yellow gold, set with a round cut blue paste stone in a cluster of round cut emeralds, partially obscured British hallmarks, size D / 2, 1.6g. 

A BLUE PASTE AND EMERALD CLUSTER RING in yellow gold, set with a round cut blue paste stone in a cluster of round cut emeralds, partially obscured British hallmarks, size D / 2, 1.6g. 

Estimate £100 - £150