A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut sapphire of 3.34 carats in a cluster of old cut diamonds, the diamonds all totalling 0.8-1.0 carat, no assay marks, size Q / 8.25, 5.1g. Accompanied by a gemmological report st

Estimate £4,000 - £6,000

NO RESERVE - A VINTAGE CORAL AND DIAMOND RING in 18ct yellow gold, set with a horseshoe-shaped coral and single cut diamonds, full British hallmarks for London 1978, size I / 4.25, 5.7g. 

Estimate £100 - £150

AN ANTIQUE RUBY AND SAPPHIRE SNAKE RING in yellow gold, designed as two intertwined snakes, the heads set with an oval cut ruby of approximately 0.53 carats and an oval cut sapphire of approximately 0.92 carats respectively, no assay marks, size T /

Estimate £1,000 - £1,500

AN ANTIQUE DIAMOND AND ENAMEL RING in 18ct yellow gold, set with an old cut diamond, the band decorated throughout with blue enamel, accented by rows of of rose cut diamonds, partially obscured British hallmarks, size P / 7.5, 3.7g. 

Estimate £800 - £1,200

A DIAMOND RING MOUNT set with princess cut diamonds all totalling 2.25 carats, inscribed D2.25, stamped Pt900, size L / 5.75, 10.2g. 

Estimate £300 - £500

AN AMETHYST DRESS RING set with a cabochon amethyst of 6.80 carats, stamped 18K, size N / 6.75, 13.1g. 

Estimate £1,500 - £2,500

A SAPPHIRE AND DIAMOND THREE STONE RING in 18ct yellow and white gold, set with a cushion cut sapphire of approximately 1.20 carats, accented on each side by a pear cut diamond, full British hallmarks for London 2000, size N / 6.75, 3.8g. 

Estimate £2,500 - £3,500

CARTIER, A DIAMOND C DE CARTIER RING in 18ct white gold, the open band ring terminating in a C motif set with round brilliant cut diamonds, signed Cartier and numbered, Italian assay marks, stamped 750, size J1/2 / 5, 11.8g. 

Estimate £1,500 - £2,500

BULGARI, A B.ZERO 1 RING in 18ct yellow and white gold, the band with engraved lettering 'BVLGARI' to the sides, signed Bulgari, Italian assay marks, stamped 750, size J / 4.75, 10.2g. 

Estimate £800 - £1,200

A MORGANITE AND DIAMOND RING set with an octagonal step cut morganite of approximately 43.50 carats, the gallery accented by round brilliant cut diamonds, no assay marks, size O1/2 / 7.5, 20.5g. 

Estimate £3,000 - £5,000

A RUBY AND DIAMOND RING designed as a stylised flower, set with a round brilliant cut diamond, the petals illusion set with calibre cut rubies, inscribed 0.10 R2.08, stamped K18WG, size L1/2 / 6, 5.5g. 

Estimate £800 - £1,200

A CEYLON SAPPHIRE AND DIAMOND THREE STONE RING set with a round cut sapphire of 3.20 carats accented on each side by an old European cut diamond, the diamonds both totalling approximately 2.17 carats, no assay marks, size M1/2 / 6.5, 5.0g. Accompanie

Estimate £8,000 - £12,000

CARTIER, A RUBELLITE TOURMALINE RING set with an oval cut rubellite tourmaline of approximately 3.05 carats, signed Cartier 1997 and numbered, stamped 750, size I1/2 / 4.5, 14.3g. 

Estimate £3,000 - £5,000

TIFFANY & CO., A GOLD RING comprising three hammered segments, signed Tiffany & Co., stamped 18K, size I1/2 / 4.5, 18.6g. 

Estimate £2,000 - £3,000

VAN CLEEF & ARPELS, A MALACHITE AND DIAMOND RING set with segments of polished malachite, accented by segments of round brilliant cut diamonds, signed VCA and numbered, stamped 750, size J / 4.75, 6.7g.

Estimate £4,500 - £5,500

A BURMA NO HEAT SPINEL AND DIAMOND RING set with a cushion cut spinel of 3.29 carats in a border of round brilliant cut diamonds, stamped 18K, size M / 6.25, 3.8g. Accompanied by a gemmological report stating that the spinel is of Burmese (Myanmar) o

Estimate £4,500 - £5,500

CARTIER, A DIAMOND LA DONA RING the band designed as two rows of half moon motifs, two motifs pave set with round brilliant cut diamonds, signed Cartier and numbered, stamped 750, size K1/2 / 5.5, 15.1g. 

Estimate £1,200 - £1,600

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with a round cabochon sapphire in a cluster of old cut diamonds, the diamonds all totalling 0.5-0.6 carats, stamped 18CT PLAT, size L1/2 / 6, 2.5g. 

Estimate £500 - £700

A BLOODSTONE INTAGLIO SIGNET RING set with a bloodstone intaglio carved to depict a coat of arms, stamped 18K, size R1/2 / 9, 26.1g. 

Estimate £1,000 - £1,500

AN ANTIQUE RUBY, EMERALD AND DIAMOND CLUSTER RING in yellow gold and silver, set with a cushion cut ruby of approximately 0.43 carats, in a cluster of cushion cut emeralds and old cut diamonds, no assay marks, size L / 5.75, 1.3g. 

Estimate £1,500 - £2,500

CARTIER, A LOVE RING in 18ct white and yellow gold, comprising two hinged bicolour rings punctuated with screw head motifs, engraved 'Cartier', signed Cartier and numbered, Swiss assay marks, stamped 750, size M / 6.25, 11.0g. 

Estimate £1,000 - £1,500

A DIAMOND FULL ETERNITY RING set all around with a row of carre cut diamonds, stamped 750, size J1/2 / 5, 3.7g. 

Estimate £1,500 - £2,500

MIKIMOTO, A PEARL AND DIAMOND RING set with three rows of pearls accented by round brilliant cut diamonds, signed Mikimoto, stamped K18, size K /5.25, 10.1g. 

Estimate £1,200 - £1,600

A FIRE OPAL AND ORANGE SAPPHIRE DRESS RING set with a square step cut fire opal, the mount accented by round cut orange sapphires, stamped 14K, size R1/2 / 8.75, 40.4g. 

Estimate £4,000 - £6,000

A SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut sapphire of approximately 6.70 carats in a double cluster of round brilliant and single cut diamonds, stamped 18CT, size M / 6.25, 9.5g. 

Estimate £4,000 - £6,000

AN ANTIQUE TURQUOISE AND PEARL NAVETTE RING set with a row of alternating round cabochon turquoise and pearls, in a border of further pearls, no assay marks, size L1/2 / 6, 4.4g. 

Estimate £500 - £700

AN ANTIQUE DIAMOND AND ENAMEL MOURNING LOCKET RING the navette face decorated with blue enamel, with an applied urn motif set with rose cut diamonds, opening to reveal a locket compartment, the shoulders designed as angels decorated with blue, white

Estimate £3,000 - £5,000

A SAPPHIRE AND DIAMOND RING set with a cushion cut sapphire of approximately 3.11 carats, the stepped shoulders set with old European cut diamonds, no assay marks, size H1/2 / 4, 2.8g. 

Estimate £2,000 - £3,000

A RUBY AND DIAMOND OWL RING the head designed as the face of an owl set with rose cut diamonds, the eyes set with round cut rubies, no assay marks, size N / 6.75, 4.2g. 

Estimate £400 - £600

A RUBY FIVE STONE RING set with five round cut rubies, no assay marks, size J1/2 / 5, 1.6g. 

Estimate £150 - £250

AN ANTIQUE SAPPHIRE AND DIAMOND FIVE STONE RING in 18ct yellow gold, set with five cushion cut sapphires accented by rose cut diamonds, the sapphires totalling 2.5-2.8 carats, stamped 18CT, size L1/2 / 6, 6.3g. 

Estimate £2,000 - £3,000

A CEYLON SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut sapphire of 2.57 carats in a cluster of round brilliant cut diamonds, the diamonds totalling 0.5-0.6 carats, full British hallmarks, size O / 7.25, 5.5g. 

Estimate £3,000 - £5,000

TASAKI, A PEARL AND DIAMOND RING set with a pearl of 6.9mm, accented on each side by a round brilliant cut diamond, Tasaki maker's mark, stamped K18, size I1/2 / 4.5, 3.9g. 

Estimate £300 - £500

A DIAMOND HALF ETERNITY RING in 9ct yellow gold, set with seven round brilliant cut diamonds all totalling approximately 0.40 carats, inscribed 'WJE', full British hallmarks for Birmingham 1984, size M / 6.25, 2.5g. 

Estimate £250 - £350

A KUNZITE AND DIAMOND RING set with an octagonal step cut kunzite of 6.71 carats in a border of round brilliant and baguette cut diamonds, further round brilliant cut diamonds set to the shoulders, the diamonds totalling 0.65 carats, stamped 18K, siz

Estimate £1,500 - £2,500

A RUBY AND DIAMOND THREE STONE RING set with a round cut ruby of approximately 1.18 carats, accented on each side by a round brilliant cut diamond, the diamonds totalling 0.9-1.0 carat, no assay marks, size L / 5.75, 2.8g. 

Estimate £2,000 - £3,000

BULGARI, A DIAMOND B.ZERO1 RING in 18ct white gold, set with a round brilliant cut diamond, with engraved lettering 'BVLGARI', signed Bulgari, Italian assay marks, stamped Au750, size K / 5.25, 6.4g. 

Estimate £600 - £800

A TANZANITE AND DIAMOND DRESS RING set with a heart cut tanzanite of 4.53 carats in a cluster of round cut diamonds, the shoulders set with round cut sapphires and diamonds, inscribed S4.53 s0.34ct d0.628ct, stamped AU750, size M / 6.25, 6.2g. 

Estimate £1,800 - £2,200

A CHALCEDONY AND DIAMOND RING DRESS RING set with an oval cabochon chalcedony in a cluster of marquise cut diamonds, the diamonds all totalling 2.0-2.5 carats, stamped 750 18K, size K1/2 / 5.5, 11.8g. 

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND RING the rectangular face set with an octagonal step cut emerald of approximately 0.43 carats, accented by baguette cut diamonds, the diamonds totalling 0.7-0.8 carats, stamped 18CT, size O / 7.25, 3.4g. 

Estimate £2,000 - £3,000

TASAKI, A PEARL AND DIAMOND CLUSTER RING set with a pearl of 8.4mm in a cluster of round cut diamonds, Tasaki maker's mark, stamped Pt900, size J / 4.75, 6.1g. 

Estimate £400 - £600

18CT WHITE GOLD DIAMOND TRILOGY TWIST RING RBC DIAMONDS 0.25CT

Estimate £250 - £350

A VINTAGE NATURAL ORANGE JADEITE JADE AND DIAMOND RING, 1970S in 14ct yellow gold, set with an oval cabochon jadeite jade, the hammered mount accented by round cut diamonds, stamped 14K 585, size M / 6.25, 20.0g. Accompanied by a GIA report from 1978

Estimate £1,200 - £1,600

GUCCI, AN ICON RING in 18ct white gold, the band with a row of double G motifs, signed Gucci, Italian assay marks, stamped 750, size M1/2 / 6.5, 3.6g. 

Estimate £300 - £500

WENDY YUE, A JADEITE JADE, TSAVORITE GARNET AND DIAMOND FLOWER RING in 18ct white gold, set with jadeite jade petals and round cut tsavorite garnets, accented by round brilliant cut diamonds, maker's mark, full British hallmarks, stamped 750, size N1

Estimate £3,500 - £4,500

A DIAMOND RING in 18ct yellow gold, set with nine princess cut diamonds, accented by further princess cut diamonds to the shoulders, the diamonds totalling approximately 0.80 carats, full British hallmarks for Birmingham 2007, size M / 6.25, 3.7g. 

Estimate £600 - £800

A SAPPHIRE AND DIAMOND RING set with a cabochon sapphire of approximately 8.60 carats, accented by single cut diamonds, stamped PLAT, size R1/2 / 9, 7.9g. 

Estimate £5,000 - £7,000

BULGARI, A B.ZERO1 RING in 18ct white gold, the band with engraved lettering 'BVLGARI' to the sides, signed Bulgari, Italian assay marks, stamped 750, size J / 4.75, 8.4g. 

Estimate £600 - £800

A RUBY AND DIAMOND THREE STONE RING in white gold, set with a cushion cut ruby of approximately 1.55 carats between two old cut diamonds, the diamonds both totalling 0.8-1.0 carat, no assay marks, size L1/2 / 6, 2.7g. 

Estimate £2,000 - £3,000

TIFFANY & CO., A DIAMOND ATLAS RING the band ring with embossed Roman numerals, accented by a trio of round brilliant cut diamonds, signed Tiffany & Co. 1995, stamped 750, size J / 4.75, 7.2g. 

Estimate £1,000 - £1,500

A RUBELLITE TOURMALINE AND DIAMOND RING set with an oval cut rubellite of 11.85 carats in a border of round cut diamonds, the diamonds totalling 0.43 carats, stamped 18K, size M1/2 / 6.5, 8.8g. 

Estimate £800 - £1,200

A PEARL AND DIAMOND RING set with a pearl of 13.0mm, accented by rows of round brilliant cut diamonds, inscribed 0.27, stamped K18, size L1/2 / 6, 12.7g. 

Estimate £700 - £900

A DIAMOND DRESS RING set with old European and single cut diamonds, the diamonds totalling approximately 0.40 carats, no assay marks, size I / 4.25, 2.2g. 

Estimate £600 - £800

AN ANTIQUE DIAMOND CLUSTER RING in yellow gold and silver, set with a cluster of old cut diamonds, no assay marks, size R / 8.75, 4.4g. 

Estimate £3,000 - £5,000

PASQUALE BRUNI, AN ONYX, BLACK SPINEL AND DIAMOND COCKTAIL RING set with an oval cut onyx in a foliate mount set with round cut black spinels and round brilliant cut diamonds, signed Pasquale Bruni, Italian assay marks, size N / 6.75, 29.9g. 

Estimate £2,000 - £3,000

VAN CLEEF & ARPELS, A NATURAL SALTWATER PEARL AND DIAMOND RING set with a pearl of 8.0mm, the shoulders set with single cut diamonds, signed Van Cleef & Arpels, no assay marks, size R1/2 / 9, 3.1g. 

Estimate £4,000 - £6,000

A DIAMOND CLUSTER RING set with three clusters of round brilliant cut diamonds, no assay marks, size M / 6.25, 4.1g. 

Estimate £600 - £800

AN ANTIQUE CARNELIAN RING in 18ct yellow gold, set with an oval polished carnelian, on a quinfurcated band, French import marks, size I / 4.25, 13.4g. 

Estimate £800 - £1,200

AN ANTIQUE LOVER'S EYE MOURNING RING set with a miniature of an eye beneath a glass panel, the band decorated with black and white enamel, inscribed to the reverse 'Wm Sims died 16th Augt 1820 Adg 77.', no assay marks, size R / 8.75, 4.4g. 

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND DRESS RING set with a cushion cut sapphire of approximately 1.29 carats, accented by old cut diamonds and calibre cut sapphires, no assay marks, size L1/2 / 6, 3.4g. 

Estimate £3,000 - £5,000

A DIAMOND CLUSTER RING set with a cluster of old cut diamonds, the diamonds totalling 1.0-1.1 carats, no assay marks, size M / 6.25, 2.6g. 

Estimate £800 - £1,200

A SOLITAIRE DIAMOND RING set with a round brilliant cut diamond of approximately 0.60 carats, no assay marks, size J1/2 / 5, 6.7g. 

Estimate £700 - £900

AN EMERALD AND DIAMOND CLUSTER RING set with a square step cut emerald in a cluster of old European cut diamonds, no assay marks, size H / 3.75, 3.0g. 

Estimate £800 - £1,200

AN ANTIQUE OPAL, RUBY AND DIAMOND CLUSTER RING set with a round cut ruby in a cluster of oval cabochon opals, accented by rose cut diamonds, stamped 18CT, size L1/2 / 6, 2.5g. 

Estimate £500 - £700

CARTIER, A DIAMOND LOVE RING the band with six screw head motifs, three of which are set with a round brilliant cut diamond, signed Cartier and numbered, stamped 750, size M / 6.25, 8.9g. 

Estimate £800 - £1,200

A DIAMOND TOI ET MOI RING set with two transitional cut diamonds, the shoulders set with rose cut diamonds, stamped 18CT PT, size K / 5.25, 2.2g.

Estimate £300 - £500

AN EMERALD AND DIAMOND CLUSTER RING set with an oval cut emerald of approximately 6.86 carats, in a cluster of round brilliant cut diamonds, the shoulders set with fancy and further round brilliant cut diamonds, the diamonds all totalling approximate

Estimate £2,500 - £3,500

TASAKI, A PEARL AND DIAMOND TOI ET MOI RING set with two pearls accented by round brilliant and marquise cut diamonds, Tasaki maker's mark, stampek K18, size I1/2 / 4.5, 5.3g. 

Estimate £500 - £700

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with oval, square step and half moon cut sapphires accented by round brilliant cut diamonds, the sapphires totalling 1.8-2.2 carats, full British hallmarks for London 1984, size L1/2 / 6, 5.0

Estimate £800 - £1,200

A SAPPHIRE, RUBY AND DIAMOND CLUSTER RING set with a cabochon cut sapphire of approximately 18.41 carats, in a cluster of pear shaped rubies totalling approximately 2.44 carats, round cut diamonds totalling approximately 0.65 carats and round cut sap

Estimate £400 - £600

A PERIDOT AND DIAMOND RING set with an oval cut peridot of 7.02 carats in a border of round brilliant cut diamonds, further diamonds set to the shoulders, the diamonds totalling 0.56 carats, stamped 18K, size N1/2 / 7, 5.9g. 

Estimate £1,200 - £1,600

AN ANTIQUE PEARL AND DIAMOND RING designed as a stylised spray set with a pearl accented by old and rose cut diamonds, no assay marks, size M1/2 / 6.5, 4.0g. 

Estimate £500 - £700

A PEARL AND DIAMOND RING the rectangular face set with a pearl accented by old European and round brilliant cut diamonds, no assay marks, size L / 5.75, 3.2g. 

Estimate £400 - £600

A DIAMOND RING set with a princess cut diamond, the shoulders set with baguette cut diamonds, stamped 18K 750, size R1/2 / 9, 3.9g. 

Estimate £400 - £600

A KUNZITE AND DIAMOND RING set with an oval cut kunzite of approximately 3.50 carats, accented by three rows of round cut diamonds to the shoulders, the diamonds totalling approximately 0.35 carats, stamped 9K, size T1/2 / 10, 4.0g. 

Estimate £250 - £350

TIFFANY & CO., A SOLITAIRE DIAMOND RING set with a round brilliant cut diamond of 0.28 carats, inscribed .28CT, signed Tiffany & Co. and numbered, stamped PT950, size K / 5.25, 6.5g. 

Estimate £500 - £700

A COLOMBIAN EMERALD AND DIAMOND THREE STONE RING in platinum, set with an octagonal step cut emerald of 1.32 carats, flanked by two baguette cut diamonds, no assay marks, size M / 6.25, 3.3g. Accompanied by a gemmological report stating that the emer

Estimate £4,000 - £6,000

A FRENCH DIAMOND ETERNITY RING in platinum, set all around with a row of round brilliant cut diamonds, French assay marks, size O1/2 / 4.9g. 

Estimate £600 - £800

A STAR RUBY AND DIAMOND RING set with an oval cabochon star ruby, the shoulders set with single cut diamonds, stamped 18K, size K1/2 / 5.5, 4.5g. 

Estimate £700 - £900

A BROWN DIAMOND RING in 18ct yellow gold, set with a round brilliant cut brown diamond in a border of round cut diamonds, partial British hallmarks, size L1/2 / 6, 3.0g. 

Estimate £250 - £350

A RUBY AND DIAMOND RING set with an oval cut ruby of 2.07 carats in a border of round brilliant cut diamonds, the shoulders set with baguette and further round brilliant cut diamonds, stamped 750, size N / 6.75, 4.1g. 

Estimate £1,200 - £1,600

A DIAMOND DRESS RING set with old European and single cut diamonds, stamped 18CT PLAT, size P / 7.75, 3.2g. 

Estimate £600 - £800

AN EMERALD AND DIAMOND TARGET RING in 18ct yellow gold, set with an octagonal step cut emerald of approximately 0.58 carats, in a border of old cut diamonds and calibre cut emeralds, stamped 18CT, size I / 4.25, 3.0g. 

Estimate £1,200 - £1,600

AN EMERALD AND DIAMOND RING set with a pear cut emerald of 3.20 carats, accented by round brilliant cut diamonds, inscribed E3.20 PD0.53, stamped 585, size M1/2 / 6.5, 3.6g. 

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND DRESS RING in crossover design, set with rectangular step cut sapphires and tapered baguette cut diamonds, inscribed D0.50 0.50, stamped K18, size O1/2 / 7.5, 5.9g. 

Estimate £600 - £800

AN OPAL HALF ETERNITY RING set with a row of round cabochon opals totalling 1.0-1.2 carats, stamped 14k, size O1/2 / 7.25, 1.14g. 

Estimate £200 - £300

A DIAMOND AND EMERALD TARGET RING set with a round cut diamond of 0.50 carats in a border of French cut emeralds and single cut diamonds, stamped 18K, size N / 6.75, 3.3g. 

Estimate £800 - £1,200

A DIAMOND AND RUBY CLUSTER RING set with a cluster of round brilliant cut diamonds, in a border of calibre cut rubies with stylised shoulders, the diamonds all totalling approximately 0.60 carats, the rubies all totalling approximately 0.85 carats, n

Estimate £700 - £900

A BURMA NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING set with a round cut sapphire of 1.45 carats in a cluster of round brilliant cut diamonds, stamped PLAT, size O / 7.25, 3.1g. Accompanied by a gemmological report stating that the sapphire is of Burme

Estimate £5,000 - £7,000