A BURMA NO HEAT RUBY AND DIAMOND CLUSTER RING set with an oval cut ruby of 1.66 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.4-1.6 carats, no assay marks, size J / 4.75, 4.0g. Accompanied by a gemmological report

Estimate £2,000 - £3,000

A SAPPHIRE AND DIAMOND SNAKE RING designed as a coiled snake, set with oval cabochon sapphires and round brilliant and marquise cut diamonds, stamped 750, size M1/2 / 6.5, 15.2g. 

Estimate £1,500 - £2,500

TIFFANY & CO., A DIAMOND ETOILE RING in 18ct yellow gold, the wide band set with round brilliant cut diamonds, inscribed '2001 Love R', signed Tiffany & Co., full British hallmarks for London 1999, stamped 750 PT950, size N1/2 / 7, 12.1g. 

Estimate £800 - £1,200

A 2.19 CARAT SOLITAIRE DIAMOND RING in 18ct yellow gold, set with an old European cut diamond of approximately 2.19 carats, full British hallmarks for Birmingham 1938, size L1/2 / 6, 5.0g. 

Estimate £4,000 - £6,000

A SOLITAIRE DIAMOND RING set with a round brilliant cut diamond of approximately 1.75 carats, accented on each side by a baguette cut diamond, stamped PLATINUM, size O / 7.25, 3.0g. Accompanied by a gemmological report stating that the diamond is J/K

Estimate £3,000 - £5,000

AN ANTIQUE EMERALD AND DIAMOND CLUSTER RING in yellow gold, set with an octagonal step cut emerald of approximately 0.52 carats in a cluster of old cut diamonds all totalling 1.2-1.3 carats, no assay marks size N / 6.75. 3.5g. 

Estimate £1,000 - £1,500

AN ANTIQUE SAPPHIRE, PEARL AND DIAMOND FLOWER RING in yellow gold and silver, designed as a flower, set with a pearl in a cluster of cushion cut sapphires, accented by old and rose cut diamonds, later shank, size M1/2 / 6.5, 4.5g. 

Estimate £1,000 - £1,500

AN ANTIQUE BLUE ENAMEL AND DIAMOND BANGLE in yellow gold, the hinged bangle decorated throughout with blue enamel, accented by old cut diamonds in a cross hatch pattern, no assay marks, inner circumference 16.5cm, 17.0g. Accompanied by an antique ban

Estimate £2,000 - £3,000

AN ANTIQUE TURQUOISE AND DIAMOND CLUSTER RING in yellow gold, set with an old cut diamond in a cluster of pear shaped cabochon turquoise, no assay marks, size M1/2 / 6.5, 3.3g.

Estimate £500 - £700

AN ANTIQUE DIAMOND BELCHER RING in 18ct yellow gold, set with an old cut diamond of approximately 0.50 carats, full British hallmarks for Birmingham 1891, size R1/2 / 8.75, 8.3g. 

Estimate £1,000 - £1,500

AN ANTIQUE GARNET AND EMERALD CLUSTER RING in yellow gold, set with a cluster of cushion and oval cut garnets accented by cushion cut emeralds, no assay marks, size O1/2 / 7.5, 2.2g. 

Estimate £400 - £600

A CEYLON NO HEAT PINK SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut pink sapphire of 1.78 carats in a cluster of marquise and round brilliant cut diamonds, stamped 750, size L / 5.75, 3.7g. Accompanied by a gemmological report stating the

Estimate £1,000 - £1,500

A DIAMOND DRESS RING in 18ct white gold, comprising two rows of emerald cut diamonds accented by rows of baguette cut diamonds, the diamonds totalling 1.8-2.0 carats, full British hallmarks for London 1995, size M1/2 / 6.5, 8.8g. 

Estimate £800 - £1,200

AN AQUAMARINE AND DIAMOND DRESS RING set with an octagonal step cut aquamarine of approximately 3.70 carats, the foliate style border set with round brilliant cut diamonds, the diamonds totalling 1.4-1.6 carats, stamped 750, size O / 7.25, 11.7g. 

Estimate £800 - £1,200

A DIAMOND DRESS RING in platinum, set with a round brilliant cut diamond of approximately 0.50 carats, accented by round brilliant and single cut diamonds, the diamonds totalling 0.8-1.0 carat, stamped 900 PLAT, size L1/2 / 6, 4.7g.

Estimate £1,200 - £1,600

AN OPAL AND DIAMOND RING in 18ct white gold, set with an oval cabochon opal, the shoulders set with trios of round brilliant cut diamonds, the diamonds totalling 0.7-0.8 carats, full British hallmarks, size M / 6.25, 5.3g. 

Estimate £800 - £1,200

AN EMERALD AND DIAMOND RING set with an oval cabochon emerald, the shoulders pave set with round brilliant cut diamonds, stamped 750, size N / 6.75, 4.4g. 

Estimate £600 - £800

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

A RUBELLITE TOURMALINE AND DIAMOND RING set with a pear cut rubellite tourmaline of approximately 5.61 carats, accented by round brilliant cut diamonds, the diamonds all totalling 4.0-4.1 carats, stamped 18K, size M / 6.25, 15.3g. 

Estimate £5,000 - £7,000

AN EMERALD SCARAB DRESS RING set with an oval cabochon emerald carved to depict a scarab, inscribed 380, stamped 750, size U / 10.25, 11.1g. 

Estimate £2,000 - £3,000

AN ANTIQUE DIAMOND DRESS RING in yellow gold and silver, the openwork ring set with an old cut diamond accented by round cut diamonds, no assay marks, size L / 5.75, 2.2g.

Estimate £500 - £700

AN ANTIQUE DIAMOND SNAKE RING in rose gold, designed as a coiled snake, the eyes set with round cut diamonds, T&S maker's mark, no assay marks, size Q1/2 / 8.5, 11.7g. 

Estimate £600 - £800

AN ANTIQUE SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with a cushion cut sapphire of approximately 1.04 carats in a cluster of old cut diamonds all totalling 0.8-0.9 carats, no assay marks, size P / 7.75, 5.0g. 

Estimate £1,000 - £1,500

AN ANTIQUE GARNET INTAGLIO RING in yellow gold, set with a garnet intaglio carved to depict the bust of the god Hermes with his caduceus staff, no assay marks, size N / 6.75, 19.4g. 

Estimate £6,000 - £8,000

AN ANTIQUE MEMENTO MORI STUART CRYSTAL MOURNING RING, 1731, in yellow gold, comprising a skull in white and black enamel beneath a Stuart crystal, the band decorated with black enamel and the words 'Mary Hall OB 22 Sep 1731', no assay marks, size D1/

Estimate £3,000 - £5,000

AN ANTIQUE EMERALD AND PEARL CLUSTER RING in yellow gold, set with a cushion cut emerald of approximately 0.96 carats in a cluster of pearls, no assay marks, size N / 6.75, 5.1g. 

Estimate £800 - £1,200

AN ANTIQUE OPAL FIVE STONE RING in 18ct yellow gold, set with five oval cabochon opals, accented by rose cut diamonds, full British hallmarks for Birmingham 1924, size N1/2 / 7, 3.5g. 

Estimate £600 - £800

A TURQUOISE, DIAMOND AND SAPPHIRE DRESS RING set with an oval cabochon sapphire, the stylised border set with marquise cut sapphires and round brilliant cut diamonds, stamped 14K, size I / 4.25, 15.2g. 

Estimate £1,200 - £1,600

AN AQUAMARINE AND DIAMOND RING set with an octagonal step cut aquamarine of approximately 6.26 carats, the foliate shoulders set with round brilliant cut diamonds, stamped 750, size P / 7.75, 5.5g. 

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 £1,000 - £1,500

KAT FLORENCE, AN UNHEATED RUBY AND DIAMOND RING set with an oval cut ruby of 1.05 carats, the shoulders accented by round brilliant cut diamonds, signed Kat Florence, stamped 18K D0.73, size M1/2 / 6.5, 5.5g. Accompanied by a Kat Florence jewellery b

Estimate £2,500 - £3,500

A DIAMOND BUBBLE RING set with round brilliant cut diamonds, stamped PT950, size N / 6.75, 8.0g. 

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND BOMBE RING set all around with round cut sapphires accented by rows of round brilliant cut diamonds, no assay marks, size L / 5.75, 11.7g. 

Estimate £800 - £1,200

A VINTAGE RUBY, SAPPHIRE AND DIAMOND BOMBE RING in 18ct yellow gold, the bombe face in floral design, set with round brilliant cut diamonds in clusters of marquise cut rubies and sapphires, stamped 750, size K / 5.25, 14.4g. 

Estimate £800 - £1,200

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

Estimate £600 - £800

A VINTAGE CEYLON SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut sapphire of approximately 2.49 carats in a cluster of round brilliant cut diamonds, the diamonds totalling 1.7-2.0 carats, full British hallmarks for Birmi

Estimate £3,000 - £5,000

A FINE BURMA NO HEAT SAPPHIRE AND DIAMOND RING set with an oval cabochon blue sapphire of 12.32 carats in a cluster of old cut diamonds, no assay marks, size P1/2 / 8, 7.5g. Accompanied by a gemmological report stating that the sapphire is of Burmese

Estimate £20,000 - £30,000

AN ANTIQUE AGATE CAMEO RING in yellow gold, set with an agate cameo carved to depict a man in profile, no assay marks, size M / 6.25, 10.7g. 

Estimate £2,500 - £3,500

A THREE STONE DIAMOND RING set with three round brilliant cut diamonds all totalling 1.5-1.6 carats, stamped PLAT, size J / 4.75, 3.2g.

Estimate £1,000 - £1,500

A FINE COLOMBIAN EMERALD AND DIAMOND RING set with an octagonal step cut emerald of 4.04 carats, the mount set with round brilliant cut diamonds and calibre cut emeralds, no assay marks, size P / 7.75, 5.0g. With a gemmological verbal assessment stat

Estimate £8,000 - £12,000

H STERN, AN AQUAMARINE AND DIAMOND RING set with an octagonal step cut aquamarine of approximately 6.50 carats, accented on each side with two single cut diamonds, maker's mark, stamped 750, size N1/2 / 7, 5.3g. 

Estimate £1,000 - £1,500

A DIAMOND BOMBE RING the bombe face in scalloped design set throughout with round brilliant cut diamonds, the diamonds totalling 1.6-1.8 carats, stamped 18K 750, size N1/2 / 7, 12.2g. 

Estimate £800 - £1,200

AN ANCIENT GOLD SNAKE RING in yellow gold, designed as a coiled snake, no assay marks, size S / 9.25, 5.2g. 

Estimate £2,000 - £3,000

A RUBY AND DIAMOND GYPSY RING set with an oval cut ruby between two round brilliant cut diamonds, stamped 750, size M / 6.35, 4.8g. 

Estimate £800 - £1,200

A VINTAGE DIAMOND DRESS RING, 1970's in yellow gold, the sculptural ring comprising triangular motifs accented by old cut diamonds, no assay marks, size N1/2 / 7, 13.3g. 

Estimate £1,500 - £2,500

AN ANTIQUE SARDONYX SIGNET MOURNING RING in 18ct yellow gold, set with a carved sardonyx depicting a shield, inscribed 'Henry Young Ob 30th June 1854. 62', full British hallmarks for London 1855, size O1/2 / 7.5, 7.6g. 

Estimate £800 - £1,200

A JADEITE JADE AND DIAMOND CLUSTER RING set with a cabochon jadeite jade in a cluster of round brilliant and old cut diamonds, the diamonds all totalling 1.1-1.2 carats, no assay marks, size L1/2 / 6, 5.3g. 

Estimate £1,200 - £1,600

AN ANTIQUE PEARL RING in 18ct yellow gold, set with three pearls, partial British hallmarks, size N / 6.75, 3.4g. 

Estimate £400 - £600

A NATURAL SALTWATER PEARL AND DIAMOND CLUSTER RING set with a heart shaped pearl in a cluster of rose cut diamonds, no assay marks, size M / 6.25, 4.2g. Accompanied by a gemmological report stating the pearl is of natural saltwater origin with no ind

Estimate £2,500 - £3,500

A DIAMOND ENGAGEMENT RING in platinum, set with an emerald cut diamond of approximately 1.92 carats in a border of round brilliant cut diamonds, the band set with further diamonds, partial British hallmarks, size M / 6.25, 4.5g. 

Estimate £3,500 - £4,500

AN ART DECO SAPPHIRE AND DIAMOND DRESS RING set with a rectangular step cut sapphire of approximately 0.64 carats and old European cut diamonds, accented by round brilliant and single cut diamonds, the diamonds totalling 0.4-0.5 carats, no assay mark

Estimate £1,200 - £1,600

A JADEITE JADE AND DIAMOND RING in 18ct yellow gold, set with an oval cabochon jadeite jade in a cluster of round brilliant cut diamonds, full British hallmarks, size R / 8.5, 9.0g. 

Estimate £800 - £1,200

A DIAMOND DRESS RING the geometric face set with round brilliant cut diamonds, stamped PLAT 18CT, size O / 7.25, 3.0g. 

Estimate £600 - £800

A SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut sapphire of approximately 1.60 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.2-1.3 carats, stamped 18CT PLAT, size O / 7.25, 4.5g. 

Estimate £1,800 - £2,200

A PINK TOURMALINE AND DIAMOND DRESS RING set with a cushion cut pink tourmaline of approximately 7.76 carats accented by round brilliant cut diamonds, the diamonds totalling 2.4-2.8 carats, no assay marks, size O / 7.25, 8.6g.

Estimate £1,000 - £1,500

A 10.27 CARAT ZAMBIAN MINOR EMERALD AND DIAMOND RING set with a cushion cut emerald of 10.27 carats in a cluster of pear, marquise and round brilliant cut diamonds, the shoulders pave set with further round brilliant cut diamonds, the diamonds all to

Estimate £20,000 - £30,000

A DIAMOND AND COLOURED GLASS TARGET RING set with a round brilliant cut diamond in a border of dark red glass, accented by a border of further diamonds stamped 750, size Q / 8, 4.0g. 

Estimate £800 - £1,200

KAT FLORENCE, A RUSSIAN DEMANTOID GARNET AND DIAMOND DRESS RING set with an oval cut demantoid garnet of 1.23 carats in a cluster of round brilliant cut diamonds, the shoulders accented by further round brilliant cut diamonds, the diamonds all totall

Estimate £2,000 - £3,000

A SOLITAIRE DIAMOND RING in platinum, set with an old European cut diamond of approximately 1.47 carats, the shoulders set with single cut diamonds, stamped PLAT, size M1/2 / 6.5, 3.3g. 

Estimate £3,000 - £5,000

AN ANTIQUE EMERALD AND DIAMOND RING in yellow gold, in scrolling foliate design, set with an oval cut emerald accented on each side by an old cut diamond, no assay marks, size J1/2 / 5, 1.8g. 

Estimate £300 - £500

A YELLOW SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut yellow sapphire of approximately 2.40 carats in a cluster of round brilliant cut diamonds all totalling 1.3-1.4 carats, stamped PLAT, size N / 6.75, 6.6g. 

Estimate £1,500 - £2,500

AN ANTIQUE SARDONYX INTAGLIO SIGNET RING in yellow gold, set with an oval sardonyx intaglio carved with a family crest, no assay marks, size U / 10, 12.6g. 

Estimate £800 - £1,200

A RUBY AND DIAMOND CLUSTER RING set with a round cut ruby of approximately 0.37 carats in a cluster of old cut diamonds, no assay marks, size P / 7.75, 2.9g. 

Estimate £1,200 - £1,600

AN ANTIQUE AMETHYST AND PEARL RING in yellow gold, set with an oval cut amethyst in a cluster of pearls, the bifurcated band set with further pearls, no assay marks, size L / 5.75, 3.0g. 

Estimate £500 - £700

A RUBY AND DIAMOND THREE STONE RING in 18ct yellow gold, set with an oval cut ruby of approximately 0.89 carats, accented on each side by a round brilliant cut diamond, full British hallmarks, size L1/2 / 6, 3.1g. 

Estimate £800 - £1,200

AN ANTIQUE OPAL AND DIAMOND RING in yellow gold, set with an oval cabochon opal in a cluster of old cut diamonds, accented on each side by a further cabochon opal, full British hallmarks for Birmingham 1906, size O / 7.25, 3.6g. 

Estimate £300 - £500

AN EMERALD AND DIAMOND RING the oval face set with an oval cut emerald, accented by single cut diamonds, no assay marks, size Q / 8, 6.1g. 

Estimate £1,000 - £1,500

AN AMETHYST AND DIAMOND CLUSTER RING set with a pear cut amethyst of approximately 2.60 carats in a cluster of single cut diamonds, stamped 14K, size I1/2 / 4.5, 5.9g. 

Estimate £400 - £600

A PINK SAPPHIRE AND DIAMOND DRESS RING in platinum, set with a mixed cut pink sapphire of approximately 3.19 carats within a border of round brilliant cut diamonds, further diamonds set to the shoulders, the diamonds totalling 1.0-1.2 carats, full Br

Estimate £3,500 - £4,500

A SOLITAIRE DIAMOND RING set with a princess cut diamond of approximately 1.40 carats, the band set with a row of round brilliant cut diamonds, stamped 14K, size N / 6.75, 2.6g. 

Estimate £1,200 - £1,600

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

A YELLOW SAPPHIRE AND DIAMOND RING set with an oval cut yellow sapphire of 13.09 carats, the stepped shoulders set with round brilliant cut diamonds, no assay marks, size L / 5.75, 5.4g. 

Estimate £3,000 - £5,000

A SAPPHIRE AND YELLOW DIAMOND CLUSTER RING set with an oval cut sapphire of approximately 2.68 carats in a cluster of round brilliant cut yellow diamonds and marquise cut diamonds, no assay marks, size I / 4.25, 7.9g. 

Estimate £1,500 - £2,500

AN AQUAMARINE AND DIAMOND RING set with an octagonal step cut aquamarine of approximately 4.69 carats, the geometric shoulders set with round brilliant cut diamonds, stamped 750, size Q / 8.25, 5.1g. 

Estimate £1,500 - £2,500

AN OPAL AND DIAMOND CLUSTER RING set with a cabochon opal in a cluster of single cut diamonds, no assay marks, size O / 7.25, 4.1g.

Estimate £600 - £800

A SAPPHIRE AND DIAMOND DRESS RING set with three cushion cut sapphires in borders of old cut diamonds, the shoulders set with further diamonds, no assay marks, size M / 6.25, 3.7g. 

Estimate £2,000 - £3,000

A YELLOW SAPPHIRE AND DIAMOND DOLPHIN RING designed as a dolphin set with round cut yellow sapphires accented by round brilliant cut diamonds, the yellow sapphires totalling 4.85 carats, inscribed D070 485, stamped 750, size N1/2 / 7, 14.8g. 

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND CLUSTER RING set with an octagonal step cut emerald of approximately 1.30 carats in a cluster of round brilliant cut diamonds all totalling 1.1-1.2 carats, stamped PLAT, size M1/2 / 6.5, 5.9g. 

Estimate £1,000 - £1,500

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

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a round brilliant cut diamond of approximately 1.92 carats, the bifurcated band and gallery set with round brilliant cut diamonds, stamped 18K 750, size N / 6.75, 4.4g 

Estimate £2,000 - £3,000

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

A DIAMOND THREE STONE RING set with a round brilliant cut diamond between a round brilliant cut cognac and yellow diamond, the diamonds all totalling 1.3-1.5 carats, stamped 750, size P1/2 / 8, 8.2g. 

Estimate £800 - £1,200

A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING in white gold, set with an octagonal step cut sapphire of 13.49 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.1-1.2 carats, no assay marks, size O1/2 / 7.5, 8.3g.

Estimate £10,000 - £15,000

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, stamped K18, size I1/2 / 4.5, 5.3g. 

Estimate £500 - £700

A WATERMELON TOURMALINE AND DIAMOND RING set with an octagonal step cut watermelon tourmaline of 4.98 carats in a border of round brilliant cut diamonds, the bifurcated band set with further diamonds, stamped 18K, size N / 6.75, 5.4g. 

Estimate £1,200 - £1,600

A VINTAGE EMERALD AND DIAMOND CLUSTER RING set with an old cut diamond in a cluster of pear cut emeralds and single cut diamonds, marked indistinctly, size Q1/2 / 8.5, 4.2g. 

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND CLUSTER RING set with an octagonal step cut sapphire of approximately 1.50 carats in a cluster of round brilliant cut diamonds all totalling 1.0-1.1 carats, stamped PLAT 18CT, size P / 7.75, 5.8g. 

Estimate £1,500 - £2,500

AN UNHEATED RUBY AND DIAMOND RING set with a round cut ruby of 1.75 carats in a border or round cut  diamonds, the shoulders set with further diamonds, marked indistinctly, size O / 7.25, 4.6g. Accompanied by a gemmological report stating that the ru

Estimate £1,500 - £2,500

AN ANTIQUE SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with a pear cut sapphire of approximately 2.09 carats in a cluster of rose cut diamonds, no assay marks, size K1/2 / 5.5, 5.5g. 

Estimate £2,000 - £3,000

AN ANTIQUE RUBY AND DIAMOND RING in silver, the scrolling band in foliate design set with round and cushion cut rubies and rose cut diamonds, no assay marks, size J1/2 / 5, 3.5g. 

Estimate £700 - £900

A VINTAGE DIAMOND GYPSY RING in 18ct yellow gold, set with three round brilliant cut diamonds within star shaped borders, full British hallmarks for London 1980, size R1/2 / 9, 6.4g. 

Estimate £600 - £800

AN ANTIQUE AGATE INTAGLIO EROTIC RING in yellow gold, set with an agate intaglio carved to depict multiple figures in an erotic scene, no assay marks, K1/2 / 5.5, 4.3g. 

Estimate £1,500 - £2,500

AN ANTIQUE GARNET AND DIAMOND RING in yellow gold and silver, in foliate design set with cushion cut garnets and rose cut diamonds, no assay marks, size P / 7.75, 3.8g. 

Estimate £800 - £1,200

A GOLD SIGNET RING in 9ct yellow gold, engraved with a family crest, full British hallmarks, size P / 7.75, 14.4g.

Estimate £800 - £1,200

A RUBY AND DIAMOND FIVE STONE RING set with a row of cushion and round cut rubies and round brilliant cut diamonds, accented by round cut diamonds, the rubies totalling 1.8-2.0 carats, the diamonds totalling 0.7-0.8 carats, no assay marks, size O / 7

Estimate £1,500 - £2,500

A DIAMOND COCKTAIL RING set with a cluster of round brilliant cut diamonds, the diamonds totalling 3.2-3.5 carats, the band in stylised foliate design, no assay marks, size M / 6.25, 16.4g. 

Estimate £1,500 - £2,500

A DIAMOND DRESS RING in 14ct yellow gold, set with three old cut diamonds, the principal diamond of approximately 0.94 carats, within a border of rose cut diamonds, stamped 585, size L / 5.75, 3.6g. 

Estimate £1,200 - £1,600

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut sapphire of approximately 1.24 carats in a cluster of old European cut diamonds, full British hallmarks for London 1979, size N / 6.75, 3.0g. 

Estimate £1,200 - £1,600

AN EMERALD AND DIAMOND RING in 18ct white gold, set with pear cut emeralds accented by round cut diamonds, the emeralds all totalling 2.1-2.3 carats, full British hallmarks, size L1/2 / 5.75, 5.9g. 

Estimate £800 - £1,200

A THREE STONE DIAMOND RING in 18ct yellow gold, set with three round brilliant cut diamonds totalling 0.7-0.8 carats, full British hallmarks for London 1986, size M / 6.25, 2.7g.

Estimate £600 - £800

AN AQUAMARINE AND DIAMOND RING set with a cushion cut aquamarine of approximately 3.53 carats, accented on each side by two princess cut diamonds, stamped 750, size N / 6.75, 4.1g. 

Estimate £800 - £1,000

AN ANTIQUE RUBY RING in yellow gold, set with a cushion cut ruby, the shoulders set with further cushion cut rubies, size S / 9.25, 3.8g. 

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND BALLERINA RING set with an octagonal step cut sapphire of approximately 1.05 carats in a cluster of round brilliant cut diamonds, within an undulating border set with tapering baguette cut diamonds, no assay marks, size M / 6.2

Estimate £2,000 - £3,000

A RUBY AND DIAMOND THREE STONE RING set with an octagonal step cut ruby of approximately 0.98 carats between two transitional cut diamonds, no assay marks, size J1/2 / 5, 2.3g. 

Estimate £800 - £1,200

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

AN ANTIQUE OPAL AND DIAMOND RING in yellow gold, set with three oval cabochon opals accented by pairs of rose cut diamonds, partially obscured British hallmarks, size O / 7.25, 3.1g.

Estimate £400 - £600

A DIAMOND SLICE FLOWER RING in 18ct white gold, designed as a flower set with yellow diamond slices, each slice in a border of round cut diamonds, the diamonds totalling 6.0-6.5 carats, full British hallmarks, size M1/2 / 6.5, 15.0g. 

Estimate £1,500 - £2,500

AN ANTIQUE GARNET AND DENDRITIC AGATE CLUSTER RING set with a round cabochon dendritic agate in a cluster of round and cushion cut garnets, no assay marks, size O / 7.25, 2.4g. 

Estimate £800 - £1,200

AN ANTIQUE PEARL AND DIAMOND FIVE STONE RING in 18ct yellow gold, set with three half pearls and two old cut diamonds, stamped 18, size P1/2 / 8, 3.9g. 

Estimate £600 - £800

AN ANTIQUE RED GLASS INTAGLIO RING set with a red glass intaglio depicting a face, no assay marks, size R / 8.75, 3.9g. 

Estimate £3,000 - £5,000

AN ANTIQUE BLOODSTONE LOCKET RING in yellow gold, set with an oval polished bloodstone, opening to reveal a glass covered locket compartment, no assay marks, size N1/2 / 7, 7.6g.

Estimate £800 - £1,200

A RUBELLITE TOURMALINE AND DIAMOND CLUSTER RING set with an octagonal step cut rubellite tourmaline of approximately 1.41 carats, in a cluster of round brilliant cut diamonds, the diamonds totalling 0.6-0.7 carats, stamped 18, size N / 6.75, 4.5g. 

Estimate £600 - £800

AN OPAL AND DIAMOND RING set with a cabochon opal in a stylised border of round cut diamonds, no assay marks, size P1/2 / 7.75, 8.9g. 

Estimate £1,800 - £2,200

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

FRANK GEHRY FOR TIFFANY & CO., A DIAMOND TORQUE RING the square ring pave set with round cut diamonds, signed T & Co., signed Gehry, stamped 750, size L / 5.75, 5.1g. 

Estimate £600 - £800

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of approximately 3.61 carats, the shoulders set with tapered baguette and round brilliant cut diamonds, stamped Pt900, size K / 5.25, 6.3g. 

Estimate £2,000 - £3,000

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 £1,000 - £1,500

A DIAMOND STAR RING designed as a star set with round brilliant cut diamonds, stamped 14K, size L1/2 / 6, 2.0g. 

Estimate £300 - £500

A SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut sapphire of approximately 3.01 carats within a double cluster of round brilliant cut diamonds, the diamonds totalling 1.7-2.0 carats, no assay marks, size O1/2 / 7.5, 9.0g. 

Estimate £700 - £900

A DIAMOND RING in 18ct white gold, set with an old European cut diamond of approximately 1.09 carats, the shoulders set with further diamonds, full British hallmarks, size K / 5.25, 2.9g. 

Estimate £2,000 - £3,000

AN AQUAMARINE AND DIAMOND RING the openwork face set with an oval cut aquamarine, accented by old and single cut diamonds, no assay marks, size M / 6.25, 5.5g. 

Estimate £1,000 - £1,500

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

NO RESERVE - A DIAMOND LILY OF THE VALLEY RING in 9ct white gold, comprising two lily of the valley flowers set with round brilliant cut diamonds, partial British hallmarks, size M1/2 / 6.5, 2.1g. 

Estimate £100 - £200

A GOLDEN PEARL, RUBY AND DIAMOND RING the stylised ring set with a golden pearl of 13.5mm, accented by round cut rubies and round cut diamonds, stamped 750, size O1/2 / 7.5, 22.5g. 36

Estimate £800 - £1,200

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

A BLUE TOPAZ AND DIAMOND DRESS RING set with a square step cut blue topaz of approximately 16.61 carats accented by princess cut diamonds, the bifurcated band set with round brilliant cut diamonds, stamped 18K, size M / 6.25, 9.1g. 

Estimate £600 - £800

A DIAMOND CLUSTER RING in 18ct white gold, set with a cluster of round brilliant cut diamonds, full British hallmarks, size N / 6.75, 2.0g. 

Estimate £600 - £800

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

Estimate £2,000 - £3,000

AN ANTIQUE SAPPHIRE AND DIAMOND NAVETTE RING in 18ct yellow gold, the navette shaped ring set with round and pear cut sapphires in a border of old cut diamonds, the sapphires totalling 0.9-1.0 carat, the diamonds totalling 0.9-1.1 carats, stamped 18C

Estimate £1,000 - £1,500

AN ANTIQUE RUBY AND DIAMOND RING in 9ct yellow gold, set with an old cut diamond accented on each side by a round cut ruby, stamped 9CT, size I1/2 / 4.5, 2.6g. 

Estimate £200 - £300

A SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut sapphire of approximately 0.53 carats in a cluster of round brilliant cut diamonds, stamped 18CT PLAT, size L1/2 / 6, 2.1g.

Estimate £600 - £800

A VINTAGE RUBY AND DIAMOND DRESS RING in platinum, set with an oval cut ruby of 0.75 carats in a border of old cut and single cut diamonds, stamped Platinum, size P / 7.75, 3.9g.

Estimate £800 - £1,200

AN ANTIQUE DIAMOND RING in 18ct yellow gold, set with a row of old cut diamonds, W&P maker's mark, stamped 18ct, size N / 6.75, 3.9g. 

Estimate £200 - £300

AN ANTIQUE SAPPHIRE AND DIAMOND RING in yellow gold, set with cushion cut sapphires and old cut diamonds, no assay marks, size L / 5.75, 2.7g. 

Estimate £300 - £500

ELSA PERETTI FOR TIFFANY & CO., AN OPEN HEART RING designed as an open heart, signed Tiffany & Co., signed Peretti Spain, stamped AU750, size I1/2 / 4.5, 3.6g. 

Estimate £400 - £600

NO RESERVE - AN AMETHYST AND DIAMOND RING in 18ct blackened gold, set with a facetted amethyst, the shoulders set with round cut amethysts and diamonds, partial British hallmarks, size K1/2 / 5.5, 2.8g. 

Estimate £100 - £200

A SAPPHIRE RING set with a pear shaped cabochon sapphire of 6.50 carats, stamped 18K, size N / 6.75, 2.5g. 

Estimate £200 - £300

A DIAMOND RING set with a round brilliant cut diamond of approximately 1.55 carats, the shoulders set with trios of baguette cut diamonds, stamped PLAT, size N1/2 / 7, 4.7g. 

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND CLUSTER RING set with an octagonal step cut emerald of approximately 0.39 carats in a cluster of single cut diamonds, inscribed 14-83, stamped 750, size K1/2 / 5.5, 2.4g. 

Estimate £1,200 - £1,600

A DIAMOND DRESS RING set with three radiant cut diamonds in a border of round brilliant cut diamonds, the diamonds totalling 1.1-1.3 carats, stamped 18K, size M / 6.25, 4.1g. 

Estimate £1,000 - £1,500

A GARNET FULL ETERNITY RING set all around with a row of cabochon garnets totalling 4.35 carats, stamped 18K, size N / 6.75, 1.5g. 

Estimate £150 - £250

AN EMERALD RING set with an oval cabochon emerald of 3.20 carats, stamped 18K, size M / 6.25, 1.6g. 

Estimate £350 - £550

AN ANTIQUE RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cluster of old cut diamonds and round cut rubies, TH&S maker's mark, partial British hallmarks, size M1/2 / 6.5, 3.3g.

Estimate £500 - £700

ELSA PERETTI FOR TIFFANY & CO., A DIAMOND OPEN HEART RING designed as an open heart set with round brilliant cut diamonds, signed Tiffany & Co., signed Peretti Spain, stamped Pt.950, size I1/2 / 4.5, 5.4g. 

Estimate £350 - £550

AN EMERALD AND DIAMOND RING in white gold, set with an octagonal step cut emerald of 0.64 carats, the shoulders set with round brilliant cut diamonds, marked indistinctly, size K / 5.25, 4.2g. 

Estimate £400 - £600

A DIAMOND FULL ETERNITY RING set all around with a row of single cut diamonds, stamped 18K, size R1/2 / 8.75, 2.7g. 

Estimate £300 - £500

A THREE STONE DIAMOND RING set with three old cut diamonds, inscribed D0.513ct D0.453ct, stamped PT950, size N / 6.75, 3.1g. 

Estimate £400 - £600