AN AQUAMARINE AND DIAMOND DRESS RING in 18ct white gold, set with a fancy cut aquamarine of approximately 27.67 carats, accented by round brilliant cut diamonds, full British hallmarks for Sheffield 1999, size M / 6.25, 12.8g. 

Estimate £1,000 - £1,500

A 4.23 CARAT SOLITAIRE DIAMOND RING set with an old cut diamond of 4.23 carats, no assay marks, size N / 6.75, 4.6g. 

Estimate £10,000 - £15,000

A DIAMOND DRESS RING pave set with round brilliant cut diamonds totalling 1.6-2.0 carats, signed indistinctly, stamped 750, size N1/2 / 7, 18.7g. 

Estimate £1,000 - £1,500

NOUVELLEBAGUE, AN ENAMEL AND DIAMOND BAND RING the wide band relieved throughout with green enamel, accented by round brilliant cut diamonds, signed NOUVELLEBAGUE, stamped 750, size K / 5.25, 11.9g. 

Estimate £600 - £800

CARTIER, A DIAMOND LANIER RING in 18ct white gold, set with a row of round brilliant cut diamonds, signed Cartier and numbered, stamped 750, Swiss assay mark, size M1/2 / 6.5, 4.8g. Accompanied by a Cartier jewellery box, certificate of authenticity

Estimate £1,200 - £1,600

A DIAMOND FOUR STONE RING in 18ct yellow and white gold, set with four round brilliant cut diamonds totalling 0.8-0.9 carats, control marks for 18ct gold, size L / 5.75, 3.4g. 

Estimate £400 - £600

A FINE SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with an octagonal step cut sapphire of approximately 3.29 carats, accented on each side by an old cut diamond, the diamonds totalling 1.4-1.6 carats, partial British hallmarks, size N1/2 /

Estimate £5,000 - £7,000

A BLUE TOPAZ AND DIAMOND RING set with an octagonal step cut blue topaz of approximately 14.37 carats, accented by rows of round brilliant cut diamonds, stamped 14K, size L / 5.75, 11.9g. 

Estimate £400 - £600

AN ANTIQUE AUSTRIAN DIAMOND SNAKE RING in yellow gold, designed as two snakes entwined around an old cut diamond, the heads accented by further old cut diamonds, Austrian assay mark, size M1/2 / 6.5, 5.8g.

Estimate £1,000 - £1,500

AN ANTIQUE PINK TOPAZ RING in yellow gold and silver, set with an oval cut pink topaz, no assay marks, size M / 6.25, 1.5g. 

Estimate £600 - £800

A RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut ruby of approximately 0.81 carats, accented by a cluster of round brilliant cut diamonds, stamped 18CT, size K1/2 / 5.5, 2.1g. 

Estimate £500 - £700

A RUBY AND DIAMOND RING set with a cushion cut ruby of approximately 0.49 carats, accented by pave set round brilliant cut diamonds totalling 0.8-1.1 carats, no assay marks, size M / 6.25, 5.0g. 

Estimate £300 - £500

AN OPAL AND DIAMOND RING in 15ct yellow gold, set with an oval cabochon opal, the shoulders set with single cut diamonds, stamped 15CT, size M / 6.2, 3.6g. 

Estimate £1,200 - £1,600

A RAINBOW MOONSTONE AND DIAMOND DRESS RING set with an oval cut rainbow moonstone of approximately 5.61 carats within a border of round brilliant cut diamonds, the bifurcated shoulders set with further diamonds, the diamonds all totalling 0.7-0.8 car

Estimate £2,500 - £3,500

AN EMERALD AND DIAMOND THREE STONE RING set with a round cut emerald of approximately 1.47 carats, accented on each side by a round brilliant cut diamond, the diamonds totalling 0.5-0.6 carats, stamped 18K, size N1/2 / 7, 3.2g. 

Estimate £1,500 - £2,500

AN ANTIQUE VICTORIAN GARNET CLUSTER RING set with an oval cut garnet in a cluster of round cut garnets, no assay marks, size P / 7.75, 4.0g. 

Estimate £400 - £600

AN ANTIQUE DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with a cluster of old cut diamonds, the shoulders set with further old and rose cut diamonds, the diamonds all totalling 0.5-0.6 carats, stamped 18CT PLAT, size

Estimate £500 - £700

AN ANTIQUE BURMA NO HEAT RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut ruby of 1.09 carats in a cluster of old cut diamonds, stamped 18CT, size N1/2 / 7, 3.1g. Accompanied by a gemmological report stating the ruby is of Bu

Estimate £6,000 - £8,000

AN ORANGE SAPPHIRE, TIGER'S EYE AND DIAMOND DRESS RING comprising a polished tiger's eye set with an oval cut orange sapphire in a border of round brilliant cut diamonds, accented by a stylised border set with further diamonds, inscribed 4.36ct 17.00

Estimate £1,500 - £2,500

A VINTAGE JADEITE JADE, DIAMOND AND PEARL DRESS RING set with a polished jadite jade plaque accented by round brilliant cut diamonds and pearls, stamped 750, size O1/2 / 7.5, 11.9g. 

Estimate £800 - £1,200

A MULTI GEM AND DIAMOND DRESS RING set with round and marquise cut green garnets, marquise cabochon agate and malachite and round brilliant cut diamonds, the diamonds totalling 0.6-0.7 carats, stamped 18K 750, size N / 6.75, 5.7g. 

Estimate £1,000 - £1,500

A GARNET AND DIAMOND DRESS RING set with a cushion cut garnet of approximately 5.00 carats, the shoulders set with round brilliant cut diamonds, stamped 18K, size M / 6.25, 5.8g. 

Estimate £800 - £1,200

AN IMPERIAL TOPAZ AND DIAMOND DRESS RING set with an oval cut imperial topaz of approximately 15.52 carats, within a border of pave set round brilliant cut diamonds, the bifurcated shoulders pave set with further diamonds, the diamonds all totalling

Estimate £6,000 - £8,000

A DIAMOND DRESS RING the rectangular face set with a round brilliant cut diamond of approximately 2.33 carats, accented by old and round brilliant cut diamonds, no assay marks, size M1/2 / 6.5, 6.5g. 

Estimate £8,000 - £12,000

AN ANTIQUE SAPPHIRE AND DIAMOND THREE STONE RING in 18ct yellow gold, set with a cushion cut sapphire of approximately 1.17 carats between two old cut diamonds, the diamonds both totalling 0.5-0.6 carats, stamped 18ct, size N / 6.75, 4.7g. 

Estimate £1,000 - £1,500

A RUBY AND DIAMOND TARGET RING in yellow gold, set with an oval cut ruby of approximately 1.02 carats in a border of single cut diamonds and calibre cut rubies, stamped 750, size P / 7.75, 6.7g. 

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND DRESS RING set with a cushion cut sapphire of approximately 6.28 carats accented by pave set round brilliant cut diamonds, the six bands set with further diamonds, the diamonds all totalling 0.88, inscribed D0.88, stamped 18K,

Estimate £8,000 - £12,000

A BLUE TOPAZ AND DIAMOND DRESS RING set with an oval cut blue topaz of approximately 20.42 carats in a cluster of round brilliant and baguette cut diamonds, the diamonds totalling 1.0-1.1 carats, stamped 18CT, size J / 4.75, 16.9g. 

Estimate £1,200 - £1,600

AN ANTIQUE RUBY AND DIAMOND RING in 18ct yellow gold, set with three cushion cut rubies, accented by old and rose cut diamonds, stamped 18ct, size O / 7.25, 4.1g. 

Estimate £800 - £1,200

A DIAMOND TRINITY RING comprising three interlocking tricolour bands set with a row of round cut diamonds, stamped 750, size K1/2 / 5.5, 5.9g. 

Estimate £300 - £500

AN ITALIAN RUBY AND DIAMOND DRESS RING in 18ct white gold, set with a row of rectangular step cut rubies totalling 3.06 carats, accented by pave set round brilliant cut diamonds totalling 2.05 carats, inscribed Br 2.05 R 3.06, Italian assay marks, st

Estimate £2,500 - £3,500

A SHELL OM CAMEO AND DIAMOND RING set with a shell cameo carved to depict the Om symbol, within a border of single cut diamonds totalling 0.4-0.5 carats, no assay marks, size L1/2 / 6, 6.2g. 

Estimate £300 - £500

A FIRE OPAL AND DIAMOND CLUSTER RING set with an octagonal step cut fire opal of approximately 2.46 carats in a cluster of round brilliant cut diamonds, the bifurcated shoulders set with further diamonds, stamped 18K, size N / 6.75, 6.2g. 

Estimate £1,800 - £2,200

AN ANTIQUE VICTORIAN DIAMOND AND ENAMEL MOURNING BAND RING in yellow gold, set with three old cut diamonds, accented by black enamel, inscribed G. Young Oct 2 April 1873, no assay marks, size T / 9.5, 4.3g. 

Estimate £400 - £600

STEPHEN WEBSTER, A BLUE AGATE, ROCK CRYSTAL AND DIAMOND CRYSTAL HAZE RING in 18ct yellow gold, set with a slice of blue agate beneath a faceted rock crystal dome, accented by a border of round brilliant cut diamonds, Stephen Webster maker's mark, ful

Estimate £1,200 - £1,600

AN OPAL AND DIAMOND RING set with a cabochon opal within a border of round brilliant cut diamonds, inscribed 9.17ct d0.447ct, stamped Au750, size M1/2 / 6.5, 6.0g. 

Estimate £800 - £1,200

A DIAMOND BAND RING the openwork ring set with three rows of rose cut diamonds totalling 2.3-2.5 carats, no assay marks, size M1/2 / 6.5, 6.3g. 

Estimate £700 - £900

AN AQUAMARINE, DIAMOND AND SAPPHIRE CLUSTER RING set with an octagonal step cut aquamarine of approximately 14.37 carats, within a cluster of marquise cut diamonds totalling 1.1-1.3 carats, the shoulders of the trifurcated band set with pear cut sapp

Estimate £3,000 - £5,000

A CAT'S EYE WATERMELON TOURMALINE AND DIAMOND DRESS RING set with a round cabochon cat's eye watermelon tourmaline of 63.72 carats, accented by pave set round brilliant cut diamonds totalling 3.1-3.3 carats, stamped 18K, size M1/2 / 6.5, 33.2g. 

Estimate £10,000 - £15,000

A PEARL AND DIAMOND CLUSTER RING set with a pearl of 6.3mm in a cluster of old cut diamonds, no assay marks, size N / 6.75, 4.2g. 

Estimate £600 - £800

AN ANTIQUE VICTORIAN DIAMOND, PEARL AND ENAMEL RING in yellow gold, the domed oval face set with an old cut diamond, accented by sections of blue enamel and pearls, no assay marks, size N1/2 / 7, 8.1g. 

Estimate £600 - £800

AN ANTIQUE RUBY HALF HOOP RING in yellow gold, set with five graduating cushion cut rubies, no assay marks, size O1/2 / 7.5, 3.2g. 

Estimate £800 - £1,200

A MINT TOURMALINE AND DIAMOND RING set with an oval cut mint tourmaline of approximately 2.27 carats within a border of round cut diamonds, further diamonds set to the shoulders, stamped 18K, size M1/2 / 6.5, 2.9g. 

Estimate £700 - £900

AN ANTIQUE SAPPHIRE, RUBY, EMERALD AND DIAMOND GIARDINETTO RING, 18TH CENTURY in yellow gold and silver, designed as flower pot set with a cushion cut sapphire, accented by oval cut rubies and emeralds and rose cut diamonds, no assay marks, size L1/2

Estimate £1,500 - £2,500

A SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut sapphire of approximately 2.94 carats in a cluster of round brilliant cut diamonds, stamped 585, size N / 6.75, 3.8g. 

Estimate £3,000 - £5,000

AN ANTIQUE TRIPLE INTAGLIO RING, EARLY 19TH CENTURY in yellow gold, set with a trio of graduated oval hardstones carved to depict a scarab beetle, a lion, and the rape of Proserpina, no assay marks, size S / 9, 4.5g.

Estimate £2,500 - £3,500

A RUBELLITE TOURMALINE AND DIAMOND DRESS RING set with an oval cut rubellite tourmaline of approximately 37.80 carats, within a border of round cut diamonds totalling 0.7-0.8 carats, no assay marks, size N1/2 / 7, 18.8g. 

Estimate £2,000 - £3,000

A GREEN TOURMALINE AND DIAMOND RING set with an octagonal step cut green tourmaline of approximately 11.63 carats, accented on each side by trios of single cut diamonds, no assay marks, size M1/2 / 6.5, 7.4g. 

Estimate £2,000 - £3,000

A PINK SAPPHIRE AND DIAMOND RING set with an oval cut pink sapphire of approximately 0.44 carats, accented by a row of round brilliant cut diamonds, stamped 14K, size M / 6.25, 1.8g. 

Estimate £200 - £300

AN ANTIQUE BANDED AGATE URN CAMEO MOURNING RING in yellow gold, set with an agate cameo carved to depict an urn, no assay marks, size N1/2 / 7, 3.3g. 

Estimate £400 - £600

A DIAMOND, YELLOW DIAMOND, RUBY, AND SAPPHIRE GIARDINETTO RING designed to depict a pot of flowers, the vase relieved with a fancy shaped white diamond, accented by marquise cut ruby, yellow diamond, green sapphire and blue sapphire, with further rou

Estimate £1,500 - £2,000

AN ANTIQUE PEARL AND DIAMOND RING, EARLY 20TH CENTURY the rectangular face set with three pearls, in a border of old cut diamonds all totalling 0.9-1.0 carat, no assay marks, size M1/2 / 6.5, 6.4g. 

Estimate £1,000 - £1,500

A RUBY AND DIAMOND DRESS RING in yellow gold, set with small round cut rubies and round brilliant cut diamonds set in a foliate design, ACG maker's mark, stamped 750, size H / 4, 15.3g. 

Estimate £800 - £1,200

AN ONYX SIGNET RING set with an onyx intaglio carved to depict a coat of arms, no assay marks, size O1/2 / 7.5, 8.5g. 

Estimate £600 - £800

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of approximately 1.72 carats, accented on each side by trios of old cut diamonds, marked indistinctly, size Q / 8, 4.6g. 

Estimate £2,500 - £3,500

A YELLOW SAPPHIRE AND DIAMOND RING set with an oval cut yellow sapphire of approximately 1.97 carats, accented on each side by an old cut diamond, no assay marks, size O / 7.25, 2.3g. 

Estimate £600 - £800

A SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut sapphire of approximately 0.77 carats, accented by a cluster of round cut diamonds, marked indistinctly, 

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with a rectangular step cut teal sapphire of approximately 1.66 carats, within a border of old European cut diamonds, BCH maker's mark, full British hallmarks for Birmingham 1992, size K1/2 /

Estimate £800 - £1,200

AN OPAL AND DIAMOND RING set with a cabochon opal of approximately 5.04 carats in a border of round cut diamonds, the diamonds all totalling 1.8-2.0 carats, no assay marks, size N / 6.75, 5.3g. 

Estimate £5,000 - £7,000

AN AQUAMARINE AND DIAMOND DRESS RING set with an octagonal step cut aquamarine of approximately 9.92 carats within a border of old European and single cut diamonds, stamped 585, size O / 7.25, 7.2g. 

Estimate £1,200 - £1,600

A DIAMOND TOI ET MOI RING in 18ct yellow gold, set with two round brilliant cut diamonds, full British hallmarks for Birmingham 1988, size L1/2 / 6, 2.4g. 

Estimate £500 - £700

AN EMERALD AND DIAMOND DRESS RING set with an octagonal step cut emerald of approximately 1.30 carats, accented by round brilliant, old European and single cut diamonds totalling 1.1-1.3 carats, stamped 585, size L / 5.75, 6.1g. 

Estimate £1,500 - £2,500

AN AQUAMARINE, RUBY AND DIAMOND RING set with a pear cut aquamarine of approximately 2.14 carats accented by three round cut rubies, within a border of round brilliant cut diamonds, further diamonds set to the shoulders, the diamonds all totalling 0.

Estimate £400 - £600

A TANZANITE AND DIAMOND DRESS RING set with a marquise cut tanzanite of approximately 9.76 carats, accented by round brilliant cut diamonds, the trifurcated shoulders set with further diamonds, the diamonds all totalling 1.5-1.7 carats, stamped 18K,

Estimate £3,000 - £5,000

A RUBY AND DIAMOND FULL ETERNITY RING in 18ct white gold, set all around with a row of rectangular step cut rubies, accented on each side by rows of round brilliant cut diamonds, the rubies totalling 3.5-3.8 carats, the diamonds totalling 0.4-0.5 car

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND TOI ET MOI RING set at each end with a pear cut emerald in a cluster of pear cut diamonds, the band accented by rows of round brilliant cut diamonds, the emeralds totalling 1.4-1.6 carats, the diamonds totalling 1.2-1.4 carats,

Estimate £2,000 - £3,000

A JADEITE JADE AND DIAMOND RING set with a carved jadeite jade, accented on each side by trios of single cut diamonds, stamped 18CT, size Q / 8, 3.1g. 

Estimate £600 - £800

AN ANTIQUE DIAMOND DRESS RING, EARLY 20TH CENTURY in 14ct yellow gold, the openwork rectangular face set with round and rose cut diamonds, stamped 585, size M1/2 / 6.5, 2.0g. 

Estimate £400 - £600

A VINTAGE DIAMOND THREE STONE RING in 18ct yellow gold, set with three old European cut diamonds, accented by round cut diamonds, the diamonds all totalling 1.5-1.7 carats, DSJ maker's mark, full British hallmarks for Birmingham 1989, size U / 10.25,

Estimate £2,000 - £3,000

AN ANTIQUE DIAMOND DRESS RING in yellow gold and silver, the scrolling ring set with three principal rose cut diamonds, accented by old cut diamonds, no assay marks, size K1/2 / 5.5, 5.5g. 

Estimate £3,000 - £5,000

AN ANTIQUE OPAL AND DIAMOND RING in yellow gold, set with three oval cabochon opals accented by pairs of old cut diamonds, partially obscured British hallmarks, size M1/2 / 6.5, 4.0g. 

Estimate £600 - £800

AN ANTIQUE DIAMOND AND RUBY RING in yellow gold and silver, set with an old oval cut diamond of approximately 0.69 carats between two cushion cut rubies, no assay marks, size L1/2 / 6, 3.1g. 

Estimate £2,000 - £3,000

A DIAMOND DRESS RING in foliate design, set throughout with old and rose cut diamonds totalling 1.4-1.7 carats, no assay marks, size N1/2 / 7, 9.5g. 

Estimate £1,200 - £1,600

AN ANTIQUE GARNET AND PEARL RING set with three oval cut garnets within a border of pearls, the shoulders accented by rose cut diamonds, no assay marks, size N1/2 / 7, 3.2g. 

Estimate £400 - £600

AN ANTIQUE DIAMOND DRESS RING in scrolling design, set with old European cut diamonds, no assay marks, size M / 6.25, 3.6g. 

Estimate £400 - £600

AN AGATE CAMEO RING in yellow gold, the ancient agate cameo carved to depict the bust of a man, no assay marks, size M / 6.25, 10.6g. 

Estimate £2,000 - £3,000

A DIOPSIDE AND DIAMOND NAVETTE RING in 18ct yellow and white gold, the navette face set with an oval cut green diopside, accented by round brilliant cut diamonds, full British hallmarks, size L / 5.75, 4.7g. 

Estimate £500 - £700

A RUBY AND DIAMOND THREE STONE RING set with an oval cut ruby of approximately 0.95 carats between two old cut diamonds, the diamonds totalling 0.6-0.7 carats, no assay marks, size Q / 8.25, 3.0g. 

Estimate £600 - £800

A DIAMOND DRESS RING the double band pave set with two sections of round brilliant cut diamonds totalling 0.6-0.7 carats, stamped 18K 750, size L1/2 / 6, 5.8g.

Estimate £500 - £700

A VINTAGE THREE STONE DIAMOND RING in 18ct yellow gold and platinum, set with three round brilliant cut diamonds totalling 0.4-0.5 carats, stamped 18CT PLAT, size K1/2 / 5.5, 3.6g. 

Estimate £300 - £500

A SAPPHIRE AND DIAMOND RING set with a round cut sapphire of approximately 0.14 carats, accented by a row of round cut diamonds, stamped 14K, size M / 6.25, 1.8g. 

Estimate £180 - £220

AN EMERALD AND DIAMOND RING set with an octagonal step cut emerald of approximately 1.66 carats, between pairs of baguette cut diamonds, no assay marks, size I1/2 / 4.5, 1.9g. 

Estimate £2,000 - £3,000

A GREEN TOURMALINE AND DIAMOND RING set with an oval cut green tourmaline of approximately 2.15 carats within a border of round cut diamonds, further diamonds set to the shoulders, stamped 18K, size L1/2 / 6, 4.2g. 

Estimate £600 - £800

A MULTI GEM AND DIAMOND DRESS RING set with an oval cabochon cat's eye chrysoberyl in a cluster of round brilliant cut diamonds, accented by a pear cut emerald, ruby and sapphire, stamped 18CT, size N1/2 / 7, 4.5g. 

Estimate £400 - £600

AN ANTIQUE RUBY SOLITAIRE RING, 1911 in 18ct yellow gold, set with an oval cut ruby of approximately 0.73 carats, full British hallmarks, size M / 6.25, 3.1g. 

Estimate £500 - £700

A DIAMOND AND EMERALD DRESS RING set with an old cut diamond accented by pear cut emeralds and single cut diamonds, stamped 18, size Q1/2 / 8.5, 4.2g. 

Estimate £600 - £800

AN ORANGE SAPPHIRE AND DIAMOND RING set with an oval cut orange sapphire of approximately 0.37 carats accented by a row of round cut diamonds, stamped 14K, size L1/2 / 6, 1.8g. 

Estimate £180 - £220