AN EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut emerald of 11.66 carats, in a three row border of round cut and rose cut diamonds, stamped 750, size O / 7.25, 12.9g.

Estimate £8,000 - £12,000

JEAN SCHLUMBERGER FOR TIFFANY & CO., A DIAMOND RING in platinum, comprising pairs of round brilliant cut diamonds interspersed by kiss motifs, signed Tiffany & Co., signed Schlumberger, stamped PT950, size N / 6.75, 10.9g. 

Estimate £2,000 - £3,000

A PEAR SHAPE PINK TOURMALINE AND DIAMOND RING in white gold, set with a pear shape pink tourmaline of approximately 3.87 carats between two tapered baguette cut diamonds, no assay marks, size Q / 8.25, 3.3g.

Estimate £1,500 - £2,500

A VINTAGE EBONY AND DIAMOND RING in yellow gold and white gold, set with an old mine cut diamond of approximately 0.54 carats, to an ebony border, no assay marks, size N1/2 / 7, 3.8g.

Estimate £1,000 - £1,500

A VINTAGE PORTUGUESE RUBY BOMBE RING in 18ct rose gold, pave set with round cut rubies totalling 2.8-3.0 carats to a domed head with stylised border, Portuguese assay marks, size N1/2 / 7, 16.0g.

Estimate £2,500 - £3,500

AN EMERALD AND DIAMOND RING in 18ct white gold, set with an oval cut emerald of 0.58 carats, against a ground of round brilliant cut diamonds, the diamonds all totalling 0.5-0.6 carats, stamped 750, size K / 5.5, 3.5g.

Estimate £800 - £1,200

A CEYLON NO HEAT COLOUR CHANGE SAPPHIRE AND DIAMOND RING set with a round cut colour change sapphire of 12.38 carats, the mount set with round brilliant cut diamonds, stamped 585, size M / 6, 7.4g. Accompanied by a gemological report stating that the

Estimate £15,000 - £20,000

A CITRINE ETERNITY BAND RING in 14ct yellow gold, set with a row of round cabochon citrines, stamped 14K, size O / 7, 1.4g.

Estimate £150 - £200

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

A YELLOW DIAMOND AND WHITE DIAMOND RING set with an oval cut yellow diamond of 1.00 carats between two baguette cut diamonds, no assay marks, size M / 6, 4.3g.

Estimate £3,000 - £5,000

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

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 round cut diamonds to the band, stamped 750,

Estimate £3,000 - £5,000

BULGARI, A CEYLON NO HEAT SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with a cabochon cut sapphire of approximately 13.71 carats, accented by round brilliant cut diamonds, signed BVLGARI, no assay marks, size N1/2 / 7, 14.7g. Accompanied

Estimate £6,000 - £8,000

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

A YELLOW DIAMOND THREE STONE RING set with an oval and two round cut yellow diamonds all totalling 2.10 carats, no assay marks, size M / 6, 5.6g.

Estimate £1,500 - £2,500

A BLACK OPAL DRESS RING in 18ct yellow gold, set with an oval cabochon black opal of 5.30 carats, stamped 18K, size O / 7.25, 2.6g.

Estimate £300 - £500

BOUCHERON, A DIAMOND ETERNITY RING in 18ct yellow gold, set throughout with round brilliant cut diamonds, signed Boucheron and numbered, stamped 750, size J1/2 / 5, 5.0g. 

Estimate £1,200 - £1,600

AN EMERALD AND DIAMOND RING in 18ct white gold, set with an emerald cut emerald of 6.54 carats within a border of round brilliant cut and princess cut diamonds, stamped 750, size M1/2 / 6.5, 9.6g.

Estimate £2,500 - £3,500

AN AQUAMARINE AND DIAMOND CLUSTER RING in white gold, set with an oval cut aquamarine of approximately 2.83 carats, in a halo of round brilliant cut diamonds to diamond set shoulders, stamped 18K, size P / 7.75, 4.6g.

Estimate £1,500 - £2,500

BOUCHERON, A DIAMOND DOUBLE TROUBLE SNAKE RING in 18ct white gold, the double finger ring designed as a coiled snake, set with round brilliant cut diamonds, signed Boucheron, stamped Or750, size L1/2 / 6, 14.0g. Accompanied by a Boucheron certificate

Estimate £1,200 - £1,600

BOUCHERON, A QUATRE BLACK EDITION RING in 18ct gold, the ridged band accented by blackened gold, signed Boucheron and numbered, stamped Au750, size O / 7.25, 7.3g. 

Estimate £250 - £350

BOODLES, A DIAMOND AMARI RING in platinum, the band set with Asscher cut diamonds, Boodles maker's marks, partial British hallmarks, size P / 7.75, 9.8g. Accompanied by a Boodles ring pouch. 

Estimate £1,000 - £1,500

A TANZANITE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut tanzanite of 1.43 carats within a border of round cut diamonds, the diamonds all totalling 0.5-0.6 carats, stamped 750, size O / 7, 4.4g.

Estimate £800 - £1,200

AN EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with an emerald cut emerald of 5.11 carats, accented by pairs of emerald cut diamonds, within a border of round cut diamonds, the diamonds all totalling 1.0-1.1 carats, stamped 750, size N / 6

Estimate £2,500 - £3,500

A GARNET AND OPAL ETERNITY BAND RING in 14ct yellow gold, set with a row of alternating round cut garnets and opals, size O / 7.25, 1.1g.

Estimate £120 - £180

A BURMESE RUBY AND DIAMOND RING in 18ct white gold, set with a cushion cut ruby of 4.07 carats, accented by pear cut and round cut diamonds, the diamonds all totalling 1.4-1.5 carats, stamped 750, size N / 6.75, 5.6g.

Estimate £4,000 - £6,000

A CITRINE AND DIAMOND DRESS RING in 14ct yellow gold, set with an octagonal step cut citrine of 2.79 carats, accented by round cut diamonds, stamped 14K, size N / 6.75, 3.7g.

Estimate £500 - £700

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, to a bifurcated shank further set with round cut diamonds, the diamonds all totalling 2.2-2.4 carats, stamped

Estimate £4,000 - £6,000

A BURMA NO HEAT RUBY AND DIAMOND RING in 18ct white gold, set with a cushion cut ruby of 1.08 carats within a cluster of round brilliant cut diamonds, with further diamonds to the band, British hallmarks, size L / 5.5, 4.3g. Accompanied by a gemologi

Estimate £4,000 - £6,000

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

AN ART DECO SAPPHIRE AND DIAMOND CLUSTER 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

AN EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut emerald of 1.74 carats within a border of round cut diamonds, accented to the shoulders by baguette cut diamonds, the diamonds all totalling 1.1-1.2 carats, stamped 750, size

Estimate £1,500 - £2,000

BOUCHERON, A SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of approximately 0.35 carats, signed Boucheron, stamped 950 PT, size K1/2 / 5.5, 7.4g. 

Estimate £500 - £700

CARTIER, A STAR RUBY AND DIAMOND RING in platinum, set with a cabochon star ruby of approximately 76.03 carats in a border of round brilliant cut diamonds, signed Cartier and numbered, stamped Pt, size L1/2 / 6, 21.3g. 

Estimate £10,000 - £15,000

AN EMERALD AND DIAMOND RING in 18ct white gold, set with a cabochon emerald of 30.94 carats, accented by round cut diamonds, the diamonds all totalling 1.7-1.8 carats, stamped 750, size N / 6.75, 15.8g.

Estimate £4,000 - £6,000

A SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a cushion cut sapphire of 2.20 carats accented by rose cut and round cut diamonds, the diamonds all totalling 0.55-0.65 carats, stamped 750, size N / 6.75, 6.1g.

Estimate £1,000 - £1,500

A TOURMALINE DRESS RING in 18ct yellow gold, set with round and oval cut green, pink and yellow tourmalines, stamped 18K, size M / 6.25, 3.9g.

Estimate £500 - £700

A SAPPHIRE AND DIAMOND RING in 18ct white gold, set with an oval cut sapphire of 1.96 carats, within a border of round and baguette cut diamonds, stamped 750, size O / 7, 3.4g.

Estimate £1,500 - £2,000

GRAFF, A FANCY INTENSE YELLOW DIAMOND RING set with a radiant cut yellow diamond of 1.00 carats accented on each side by a pear cut white diamond, the diamonds all totalling 1.63 carats, signed Graff, no assay marks, size M / 6.5, 7.7g. Accompanied b

Estimate £5,000 - £7,000

A SOLITAIRE DIAMOND ENGAGEMENT RING set with an old cut diamond of 2.38 carats, accented by further single cut diamonds, no assay marks, size Q / 8, 4.1g.

Estimate £3,000 - £5,000

A BURMA NO HEAT RUBY AND DIAMOND RING in 18ct white gold, set with a cushion cut ruby of 1.09 carats within a cluster of round brilliant cut diamonds, with further diamonds to the band, British hallmarks, size L / 5.5, 3.8g. Accompanied by a gemologi

Estimate £5,000 - £7,000

AN OPAL ETERNITY BAND RING in 14ct yellow gold, set with a row of round cabochon opals, stamped 14K, size O / 7, 1.3g.

Estimate £150 - £250

A DIAMOND CROSS PENDANT NECKLACE designed as a cross, set with baguette, princess and triangular cut diamonds all totalling 2.2-2.4 carats, chain stamped Pt950, pendant 4.0cm, 42.0cm, 8.7g.

Estimate £3,000 - £5,000

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut emerald of 1.52 carats within a border of round cut diamonds, the diamonds totalling 0.9-1.0 carats, stamped 750, size O / 7, 3.3g.

Estimate £1,200 - £1,800

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

TIFFANY & CO., A DIAMOND OPEN WEAVE RING in platinum, the ring in a woven design set throughout with round brilliant cut diamonds, signed Tiffany & Co. France, stamped PT950, size N1/2 / 7, 11.0g. 

Estimate £2,000 - £3,000

BOUCHERON, A DIAMOND SERPENT BOHEME RING in 18ct yellow gold, the textured snake body coiled around on itself, set to one end with round cut diamonds, signed Boucheron and numbered, stamped Au750, size O / 7, 8.3g.

Estimate £2,500 - £3,500

A RUBY AND DIAMOND ETERNITY RING set with alternating groups of step cut rubies and round cut diamonds, no assay marks, size N / 6.5, 3.2g.

Estimate £1,500 - £2,000

A TURQUOISE ETERNITY BAND RING in 18ct yellow gold, set around with a row of round cabochon turquoise, stamped 18K, size O / 7, 1.1g.

Estimate £150 - £250

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 with further round cut diamonds, the diamonds all totalling 1.50 carats, stamped 750, s

Estimate £4,000 - £6,000

A DIAMOND FIVE STONE RING in 18ct white gold, set with five round brilliant cut diamonds all totalling 2.0-2.1 carats, stamped 750, size N / 6.75, 4.2g.

Estimate £1,500 - £2,000

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 cut and round cut diamonds, the diamonds all totalling 0.9-1.0 carats, stamped 750, size N / 6.5, 8.0g.

Estimate £1,200 - £1,800

AN EMERALD AND DIAMOND DRESS RING in 18ct white gold, set with an emerald cut emerald of 5.27 carats between stepped shoulders set with baguette cut diamonds, stamped 750, size N / 6.75, 4.8g.

Estimate £1,500 - £2,000

A DIAMOND AND OBSIDIAN SNOWFLAKE RING in 14ct yellow gold, the body carved from a piece of snowflake obsidian, applied with a snowflake motif set with diamonds, stamped 14K, size L / 5.75, 5.1g.

Estimate £800 - £1,200

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

A YELLOW DIAMOND AND WHITE DIAMOND THREE STONE RING set with a radiant cut diamond of 0.58 carats between two round cut yellow diamonds both totalling 0.60 carats, no assay marks, size M / 6, 5.2g.

Estimate £1,500 - £2,500

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 cut and baguette cut diamonds, with baguette cut diamonds set to the shoulders, stamped 750, size K1/2 / 5.75, 3.5g.

Estimate £1,000 - £1,500

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

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

A TOURMALINE DRESS RING in 18ct yellow gold, designed as a flower set with oval cut pink, green and yellow tourmalines, stamped 18K, size O / 7.25, 1.7g.

Estimate £250 - £350

A PINK AND GREEN TOURMALINE ETERNITY BAND RING in 18ct yellow gold, set all around with two rows of alternating round cabochon pink and green tourmalines, size O / 7, 2.4g.

Estimate £300 - £500

A PINK TOURMALINE AND DIAMOND CLUSTER RING in white gold, set with an octagonal step cut pink tourmaline of approximately 6.13 carats, in a border of single cut diamonds to diamond set shoulders, the diamonds all totalling 0.9-1.0 carats, no assay ma

Estimate £2,000 - £3,000