AN AQUAMARINE AND DIAMOND RING set with an oval cut aquamarine of approximately 6.65 carats, the stepped shoulders set with baguette cut diamonds, no assay marks, size O1/2 / 7.5, 6.5g. 

Estimate £1,500 - £2,500

NO RESERVE - A RUBY AND DIAMOND TARGET RING in 18ct white gold, set with a round brilliant cut diamond of approximately 0.60 carats in a border of French cut rubies and single cut diamonds, full British hallmarks, size N / 6.75, 3.5g. 

Estimate £500 - £700

AN EMERALD, SAPPHIRE AND DIAMOND ETERNITY RING in 18ct white gold, set throughout with alternating round cut diamonds, sapphires and emeralds, full British hallmarks, size M1/2 / 6.5, 4.8g.

Estimate £300 - £500

NO RESERVE - A TANZANITE AND DIAMOND RING in platinum, set with an octagonal step cut tanzanite of approximately 9.20 carats accented on each side by trios of round brilliant cut diamonds, full British hallmarks, size O / 7.25, 7.0g. 

Estimate £800 - £1,200

MESSIKA, A DIAMOND MOVE UNO RING in 18ct white gold, set with a moveable round brilliant cut diamond in a border of round brilliant cut diamonds, further round brilliant cut diamonds accenting the band, inscribed D0.18, signed Messika, stamped 750, s

Estimate £100 - £150

AN ENAMEL AND DIAMOND RING in yellow gold, the ring decorated with blue enamel set to the centre with a rose cut diamond in a star setting, no assay marks, size L1/2 / 6, 5.4g. 

Estimate £500 - £700

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING set with a cabochon sapphire of approximately 5.34 carats in a cluster of round brilliant cut diamonds, no assay marks, size I / 4.25, 4.0g. 

Estimate £300 - £500

A PERIDOT AND DIAMOND THREE STONE RING in platinum, set with an oval cut peridot of approximately 1.50 carats accented on each side with a round brilliant cut diamond, stamped PLAT, size N1/2 / 7, 3.4g. 

Estimate £600 - £800

A BLUE AND WHITE PASTE RING in yellow gold, set with rectangular and triangular step cut blue paste stones, accented by a border of round cut white paste stones, no assay marks, size I1/2 / 4.5, 2.5g. 

Estimate £100 - £150

NO RESERVE - A SAPPHIRE AND DIAMOND NAVETTE RING in 18ct white and yellow gold, the navette shaped face set with three round cut sapphires accented by a border of round brilliant cut diamonds, full British hallmarks, size O / 7.25, 5.3g. 

Estimate £700 - £900

AN ANTIQUE GEORGIAN DIAMOND MOURNING RING in yellow gold, set with a table cut diamond in a cluster of rose and old cut diamonds, with a glass covered locket panel containing hairwork to the reverse, no assay marks, size L1/2 / 6, 4.4g. 

Estimate £400 - £600

AN ANTIQUE VICTORIAN MOURNING RING in yellow gold, the foliate band set with a central locket panel containing hairwork, full British hallmarks for Birmingham 1841, size O1/2 / 7.5, 2.5g. 

Estimate £150 - £250

A VINTAGE ROCK CRYSTAL INTAGLIO RING in 18ct yellow gold, set with a carved rock crystal intaglio carved to depict three feathers, in a twisted ropework border, stamped 750, size M / 6.25, 10.5g.

Estimate £400 - £600

AN ANTIQUE TURQUOISE RING in yellow gold, set with round cabochon turquoise, no assay marks, size K / 5.25, 1.6g. 

Estimate £200 - £300

A YELLOW SAPPHIRE AND DIAMOND DRESS RING set with a cushion cut yellow sapphire of approximately 10.15 carats accented by old cut diamonds, no assay marks, size M1/2 / 6.5, 11.5g. 

Estimate £5,000 - £7,000

A DIAMOND FLOWER RING in yellow gold and silver, designed as a flower set with rose cut diamonds, no assay marks, size O1/2 / 7.5, 3.9g. 

Estimate £800 - £1,200

AN ENAMEL AND DIAMOND CELESTIAL DRESS RING in yellow gold, the domed body set old and rose cut diamonds within star and crescent moon motifs, decorated with blue enamel, no assay marks, size O1/2 / 7.5, 8.5g. 

Estimate £2,000 - £3,000

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut emerald of approximately 0.76 carats in a cluster of round brilliant cut diamonds, stamped 18CT, size N / 6.75, 3.8g. 

Estimate £1,200 - £1,600

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum, set with an octagonal step cut aquamarine of 2.62 carats in a cluster of round brilliant cut diamonds, stamped PT900 2.62, size N1/2 / 7, 4.6g. 

Estimate £800 - £1,200

A PINK SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with a cushion cut pink sapphire of approximately 1.60 carats in a cluster of round brilliant cut diamonds, pairs of further round brilliant cut diamonds accenting the shoulders, no assay m

Estimate £1,500 - £2,500

A PERIDOT AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut peridot of approximately 1.25 carats in a cluster of round brilliant cut diamonds, stamped 18CT, size N / 6.75, 3.9g. 

Estimate £800 - £1,200

NO RESERVE - A DIAMOND HALO ENGAGEMENT RING in 18ct white gold, set with an oval cut diamond of 0.61 carats in a border of round brilliant cut diamonds, the band set with further diamonds, inscribed D0612, full British hallmarks, size N / 6.75, 2.9g.

Estimate £1,000 - £1,500

A PINK SAPPHIRE AND DIAMOND DRESS RING in yellow gold, set with a cushion cut pink sapphire, the stylised band accented by round brilliant cut diamonds and beaded and twisted ropework, no assay marks, size L / 5.75, 12.0g. 

Estimate £1,000 - £1,500

A TURQUOISE AND DIAMOND RING in 18ct yellow gold, comprising a polished turquoise band set with two plaques pave set with round brilliant cut diamonds, stamped 750, size M / 6.25, 11.1g. 

Estimate £400 - £600

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with a cushion cut sapphire of 6.91 carats in a border of round brilliant and baguette cut diamonds, the band set with further baguette cut diamonds, the diamonds all totalling 1.20 carats,

Estimate £4,000 - £6,000

AN AQUAMARINE AND DIAMOND THREE STONE RING in platinum, set with an octagonal step cut aquamarine of approximately 3.00 carats accented on each side by an old European cut diamond, stamped PLAT, size O1/2 / 7.5, 7.2g. 

Estimate £1,000 - £1,500

NO RESERVE - A GREEN TOURMALINE DRESS RING in high carat yellow gold, set with an octagonal mixed cut green tourmaline of approximately 9.00 carats on a scrolling mount, no assay marks, size Q / 8, 15.6g. 

Estimate £800 - £1,200

AN ANTIQUE OPAL, DIAMOND AND ENAMEL DRESS RING in yellow gold, the domed body set with a round cabochon opal accented by rose cut diamonds on a ground of white enamel, no assay marks, size N / 6.75, 7.0g.

Estimate £1,000 - £1,500

NO RESERVE - A SAPPHIRE AND DIAMOND DRESS RING in yellow gold, the square openwork face set with a round cut sapphire accented by round brilliant cut diamonds, no assay marks, size O / 7.25, 2.2g. 

Estimate £80 - £120

A VINTAGE AQUAMARINE, GREEN TOURMALINE AND DIAMOND COCKTAIL RING in yellow gold, set with an oval mixed cut aquamarine of 14.71 carats, accented on each side with a cabochon green tourmaline, the fluted mount accented by pairs of round brilliant cut

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND RING in platinum, set with an octagonal step cut emerald of approximately 2.24 carats in a double border of single cut diamonds, the band set with further diamonds, stamped PLAT, size M / 6.25, 7.6g.

Estimate £2,000 - £3,000

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut aquamarine of approximately 6.00 carats in a cluster of round brilliant cut diamonds, the shoulders set with further diamonds, stamped 750, size N / 6.75, 10.9g

Estimate £1,500 - £2,500

MESSIKA, A SPIKEY ALLIANCE DIAMOND RING in 18ct white gold, set with rows of round brilliant cut diamonds accented by gold studs, the diamonds all totalling 0.61 carats, inscribed D0.61, signed Messika, French assay marks, stamped 750, size L1/2 / 6,

Estimate £500 - £700

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a heart cut sapphire of approximately 6.00 carats, the trifurcated band set throughout with princess and round brilliant cut diamonds all totalling 3.0-3.5 carats, stamped 18K, size P1/2

Estimate £4,000 - £6,000

A CARBON AND DIAMOND RING comprising a band of carbon accented by a row of round brilliant cut diamonds, no assay marks, size M / 6.25, 1.6g. 

Estimate £200 - £300

THEO FENNELL, A BLUE TOPAZ AND DIAMOND RING in 18ct white gold, the wide tapering band set with an oval cut blue topaz accented on each side with a round brilliant cut diamond, signed Fennell, full British hallmarks, size H1/2 / 4, 12.5g. 

Estimate £300 - £500

A PERIDOT AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut peridot of approximately 4.68 carats in a cluster of round brilliant cut diamonds, the diamonds totalling 0.5-0.6 carats, stamped 750, size N / 6.75, 4.9g. 

Estimate £800 - £1,200

A YELLOW SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with an octagonal step cut yellow sapphire of approximately 1.40 carats accented on each side by a round brilliant cut diamond, stamped PLAT, size P / 7.75, 3.6g. 

Estimate £600 - £800

A RUBY AND DIAMOND RING set with a row of round cut rubies and round brilliant cut diamonds, no assay marks, size N1/2 / 7, 3.8g.

Estimate £600 - £800

MESSIKA, A DIAMOND EDEN RING in 18ct white gold, in openwork foliate design set throughout with round brilliant cut diamonds, the diamonds all totalling 2.14 carats, Messika maker's mark, French assay marks, size N / 6.75, 12.3g. 

Estimate £1,000 - £1,500

NO RESERVE - A DIAMOND NAVETTE RING in 18ct white and yellow gold, the navette shaped face set with three old European cut diamonds accented by a border of further old European cut diamonds, the diamonds all totalling 2.0-2.3 carats, stamped 18ct, si

Estimate £600 - £800

NO RESERVE - AN EMERALD AND DIAMOND CLUSTER RING in yellow and white gold, set with a round cut emerald in a cluster of round brilliant cut diamonds, stamped 18CT, size O / 7.25, 2.9g. 

Estimate £300 - £500

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of 2.87 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.59 carats, stamped 750, size N / 6.75, 5.3g.

Estimate £2,500 - £3,500

A DIAMOND RING in 18ct yellow gold, the tapering band set with a princess cut diamond of approximately 1.00 carat, accented by a baguette and a trillion cut diamond, MA maker's mark, stamped 18K, size N1/2 / 7, 6.9g. 

Estimate £2,000 - £3,000

A DIAMOND BUCKLE RING in 18ct rose and white gold, the buckle pave set with round brilliant cut diamonds, partial British hallmarks, size K / 5, 16.5g. 

Estimate £1,200 - £1,600

A DIAMOND DRESS RING in platinum, set with an emerald cut diamond of 0.72 carats in a border of baguette cut diamonds, the shoulders accented by carre cut diamonds, no assay marks, size K / 5.25, 4.3g. 

Estimate £2,500 - £3,500

A LIGHT PINK DIAMOND CLUSTER RING in 18ct white gold, set with a cushion cut pink diamond of 0.20 carats in a cluster of round cut pink diamonds, accented by a further cluster of round brilliant and rose cut diamonds, the band set with further diamon

Estimate £2,500 - £3,500

NO REVERSE - A DIAMOND AND EMERALD MARQUISE RING set with three round brilliant cut diamonds in a border of step cut emeralds (two of which are missing), no assay marks, size O1/2 / 7.5, 2.8g. 

Estimate £200 - £300

NO RESERVE - A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with an old European cut diamond in a figure of eight motif set with lab-grown single cut diamonds, accented by elongated French cut sapphires, the band set with further lab-grown

Estimate £400 - £600

NO RESERVE - A RUBY AND DIAMOND CLUSTER RING in platinum, set with an oval cut ruby of approximately 1.56 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size Q / 8, 4.5g. 

Estimate £500 - £700

A YELLOW SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow and white gold, the wide band set with a fancy mixed cut yellow sapphire accented by round brilliant cut diamonds, stamped 18CT, size O1/2 / 7.5, 13.7g. 

Estimate £1,000 - £1,500

NO RESERVE - A CORAL AND PEARL CLUSTER RING in yellow gold, set with a red cabochon coral in a cluster of pearls, no assay marks, size M1/2 / 6.5, 9.7g. 

Estimate £200 - £300

A DIAMOND CLUSTER RING in platinum, set with a cluster of old European cut diamonds, the diamonds all totalling 0.9-1.1 carats, stamped PLAT, size L / 5.75, 2.9g. 

Estimate £800 - £1,200

AN OPAL, SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a diamond-shaped cabochon opal, the gallery and band pave set with round brilliant cut diamonds and round cut sapphires, stamped 750, size N / 6.75, 11.5g.

Estimate £2,000 - £3,000

MESSIKA, A DIAMOND BUTTERFLY RING in 18ct white gold, designed as an openwork butterfly set throughout with round brilliant cut diamonds, Messika maker's mark, stamped 750, size J1/2 / 5, 3.3g. 

Estimate £200 - £300

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum, set with an octagonal step cut aquamarine of approximately 1.60 carats in a cluster of round brilliant and baguette cut diamonds, the diamonds all totalling 0.7-0.9 carats, stamped PLAT, size O / 7.

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut emerald of 2.49 carats in a cluster of round brilliant cut diamonds all totalling 1.30 carats, stamped 750, size K / 5.25, 5.3g.

Estimate £2,000 - £3,000

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire in a cluster of single cut diamonds, full British hallmarks, size P1/2 / 8, 3.6g. 

Estimate £150 - £250

A SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with an oval cut sapphire of approximately 2.60 carats accented on each side by a round brilliant cut diamond, the diamonds both totalling 1.4-1.6 carats, stamped PLAT, size O / 7.25, 5.9g. 

Estimate £3,000 - £5,000

AN EMERALD AND DIAMOND DRESS RING in 18ct yellow and white gold, set with an oval cut emerald of approximately 1.64 carats accented on each end by a round brilliant cut diamond, in a navette shaped border of further round brilliant cut diamonds, full

Estimate £1,500 - £2,500

NO RESERVE - A DIAMOND DRESS RING in platinum, set with three round brilliant cut diamonds in a border of further round brilliant cut diamonds, the band set with further diamonds, stamped PLAT, size O1/2 / 7.5, 6.4g. 

Estimate £500 - £700

AN AQUAMARINE, RUBY AND DIAMOND RING in platinum, set with a square step cut aquamarine in a border of square step cut rubies and single cut diamonds, the shoulders accented by further single cut diamonds, stamped PLAT, size N1/2 / 7, 3.7g. 

Estimate £600 - £800

A SAPPHIRE AND DIAMOND DRESS RING the tapering band of bombe design, set with a central round cut blue sapphire of 2.01 carats, within borders of round cut diamonds and demilune brilliant cut sapphires, with further round cut diamonds to the shoulder

Estimate £5,000 - £7,000

A DIAMOND SOLITAIRE RING in 14ct white gold, set to the centre with an old European cut diamond of approximately 0.85 carats between two baguette cut diamonds, stamped 14K, size N / 6.75, 2.2g. 

Estimate £1,000 - £1,500

AN ANTIQUE CARNELIAN CAMEO RING in 9ct rose gold, set with an oval carnelian cameo carved to depict a classical woman, full British hallmarks for Chester 1913, size J1/2 / 5, 1.6g. 

Estimate £80 - £120

AN OPAL RING in yellow gold, set with an oval slice of opal, no assay marks, size R1/2 / 9, 3.4g. 

Estimate £150 - £250

AN ANTIQUE BLUE PASTE SWEETHEART RING in 9ct yellow gold, set with two heart shaped blue paste stones surmounted by a bow motif, stamped 9CT, size L / 5.75, 2.7g. 

Estimate £250 - £350

NO RESERVE - A DIAMOND THREE STONE RING in 18ct yellow gold and platinum, set with three old cut diamonds in a crossover design, stamped 750 PLAT, size M / 6.25, 2.0g. 

Estimate £80 - £120

A GOLD SIGNET RING in 18ct white gold, the oval face depicting an arm holding a sword, full British hallmarks, size F1/2 / 3, 6.2g. 

Estimate £300 - £500

A GARNET FEDE RING in yellow gold, set with a heart shaped cabochon garnet between two stylised hands, no assay marks, size O1/2 / 7.5, 2.6g. 

Estimate £300 - £500

NO RESERVE - AN EMERALD AND DIAMOND CLUSTER RING in yellow gold, set with a round cut emerald in a cluster of round brilliant cut diamonds, the band set with further diamonds, no assay marks, size M / 6.25, 2.3g. 

Estimate £400 - £600

A VINTAGE ONYX AND DIAMOND RING in 18ct white gold, set with a pyramid-shaped onyx accented by polished onyx and a row of round cut diamonds, stamped 18Kt, size N / 6.75, 15.4g.

Estimate £800 - £1,200

MESSIKA, A DIAMOND GATSBY RING in 18ct white gold, comprising fourteen rows of round brilliant cut diamonds, the diamonds totalling 1.31 carats, signed Messika Paris, French assay marks, size K1/2 / 5.5, 7.6g. 

Estimate £400 - £600

A TANZANITE AND DIAMOND RING in 18ct white gold, set with a cabochon tanzanite of approximately 17.10 carats between two round brilliant cut diamonds, stamped 750, size O1/2 / 7.5, 10.2g.

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut emerald of 9.60 carats, in a border of round brilliant and princess cut diamonds, stamped 750, N1/2 / 6.75, 11.1g

Estimate £3,000 - £5,000

A DIAMOND ETERNITY RING comprising a row of graduated navette-shaped motifs set with round brilliant cut diamonds all totalling 0.9-1.1 carats, no assay marks, size K1/2 / 5.5, 5.9g.

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, the tapering band set with a row of graduated oval cut sapphires, in scalloped edge surround pave set with round cut diamonds, the sapphires all totalling 4.8-5.2 carats, the diamonds all totallin

Estimate £2,000 - £3,000

A PEARL AND DIAMOND CLUSTER RING set with a pearl of 14.2mm in a cluster of pear cut diamonds, the diamonds all totalling 2.5-3.0 carats, no assay marks, size L / 5.75, 13.7g. 

Estimate £2,500 - £3,500

A RUBY AND DIAMOND RING in 18ct white gold, set with an elongated octagonal step cut ruby of 2.10 carats in a border of round brilliant cut diamonds, the shoulders accented by further round brilliant cut diamonds, inscribed 2.10ct d0.286ct, stamped A

Estimate £1,200 - £1,600

A VINTAGE DIAMOND RING in platinum, set with a round brilliant cut diamond of approximately 0.80 carats, the shoulders accented by single cut diamonds, stamped PLATINUM, size Q / 8.25, 3.8g. 

Estimate £2,500 - £3,500

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of 5.72 carats in a cluster of round brilliant cut diamonds, the bifurcated band set with further diamonds, the diamonds all totalling 1.50 carats, stamped 750, siz

Estimate £3,000 - £5,000

MESSIKA, A DIAMOND TRILOGY RING in 18ct white gold, comprising three bands each set with a heart, pear and round brilliant cut diamond in clusters of further round brilliant cut diamonds, the bands accented by further round brilliant cut diamonds, th

Estimate £800 - £1,200

A DIAMOND FULL ETERNITY RING the band set with five rows of round brilliant cut diamonds all totalling 5.5-6.0 carats, no assay marks, size L / 5.5, 15.4g.

Estimate £1,200 - £1,600

A PINK SAPPHIRE AND DIAMOND RING set with a round cut pink sapphire in a border of round cut diamonds, further round cut diamonds accenting the bifurcated band, no assay marks, size I / 4.25, 5.1g. 

Estimate £400 - £600

NO RESERVE - A RUBY AND DIAMOND DRESS RING set to the centre with an old European cut diamond in concentric borders of calibre cut rubies and single cut diamonds, no assay marks, size N / 6.75, 7.2g. 

Estimate £800 - £1,200

A VINTAGE OPAL RING in 18ct yellow gold, set with a cabochon opal of approximately 3.75 carats, to stylised shoulders, stamped 18CT, size T1/2 / 10, 7.2g.

Estimate £300 - £500

NO RESERVE - AN EMERALD AND DIAMOND THREE STONE RING in platinum, set with an oval cut emerald of approximately 0.75 carats between two old European cut diamonds, stamped PLAT, size P / 7.75, 5.1g. 

Estimate £600 - £800

NO RESERVE - A PERIDOT AND DIAMOND DRESS RING in yellow gold and silver, the elongated face set with an oval cut peridot accented by rose cut diamonds, no assay marks, size O / 7.25, 3.2g. 

Estimate £80 - £120

MESSIKA, A DIAMOND MOVE RING in 18ct white gold, set with three moveable round brilliant cut diamonds, the band pave set with further round brilliant cut diamonds the diamonds all totalling 2.85 carats, inscribed D2.85, signed Messika, French assay m

Estimate £1,500 - £2,500

NO RESERVE - AN AQUAMARINE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut aquamarine in a cluster of round brilliant cut diamonds, no assay marks, size H / 3.75, 3.2g.

Estimate £600 - £800

A DIAMOND BAND RING in 18ct white gold, the band set with round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 8.6g. 

Estimate £500 - £700

NO RESERVE - A DIAMOND THREE STONE RING in platinum, set with three princess cut diamonds all totalling 1.0-1.1 carats, full British hallmarks, size N / 6.75, 4.5g. 

Estimate £200 - £300

NO RESERVE - A SAPPHIRE AND DIAMOND DRESS RING in platinum, set with an oval cut sapphire of approximately 1.03 carats in a stylised border set with emerald and single cut diamonds, full British hallmarks, size O / 7.25, 4.4g. 

Estimate £400 - £600

A SOLITAIRE DIAMOND RING in platinum, set with an old European cut diamond of 2.38 carats, the band accented by single cut diamonds, stamped PLAT, size N / 6.75, 3.2g. 

Estimate £10,000 - £15,000

A BLACK OPAL DRESS RING in 18ct white gold, set with an oval cabochon black opal on a wide band with engraved detailing, full British hallmarks for London 2006, size Q / 8.25, 13.3g. 

Estimate £800 - £1,200

AN EMERALD AND DIAMOND DRESS RING in yellow gold, set with an oval cut emerald of approximately 1.98 carats in a border of round brilliant cut diamonds, no assay marks, size R / 8.75, 10.9g.

Estimate £2,000 - £3,000

A SAPPHIRE, EMERALD, AND DIAMOND REVERSIBLE RING the central band half set with a row of square step cut sapphires and emeralds, flanked by reversible rows of single cut diamonds, no assay marks, size L1/2 / 6, 6.5g. 

Estimate £1,500 - £2,500

A VINTAGE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with an oval cut sapphire of approximately 2.00 carats, accented by round brilliant cut diamonds and round cut sapphires, full British hallmarks for Sheffield 1985, size O /

Estimate £2,000 - £3,000

NO RESERVE - AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with a round cut emerald in a cluster of round brilliant cut diamonds, full British hallmarks, size O / 7.25, 2.9g. 

Estimate £400 - £600

A VINTAGE SAPPHIRE AND DIAMOND DRESS RING in platinum, set with an old cut diamond of 0.19 carats in a stylised border of single cut diamonds and calibre cut sapphires, further single cut diamonds accenting the shoulders, inscribed D0.19 0.76 0.75, s

Estimate £1,500 - £2,500

AN ANTIQUE PEARL AND ENAMEL RING in yellow gold, set with pearls accented by black enamel, no assay marks, size M / 6.25, 2.0g. 

Estimate £100 - £150

NO RESERVE - AN AMETHYST AND DIAMOND DRESS RING in yellow gold and silver, the elongated face set with an oval cut amethyst accented by rose cut diamonds, no assay marks, size O / 7.25, 3.2g. 

Estimate £80 - £120

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with a central round cut diamond in a stylised cluster of rose cut diamonds and fancy cut sapphires, stamped 18CT, size N1/2 / 7, 3.6g.

Estimate £300 - £500

NO RESERVE - A DIAMOND FULL ETERNITY RING in platinum, set all around with a row of single cut diamonds, stamped PLAT, size N / 6.75, 4.0g. 

Estimate £300 - £500

AN ANTIQUE GEORGIAN DIAMOND RING in yellow gold and silver, set with a pear-shaped rose cut diamond between two rose cut diamonds, no assay marks, size N / 6.75, 2.6g. 

Estimate £6,000 - £8,000

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with three round cut sapphires in clusters of round brilliant and single cut diamonds, obscured British hallmarks, size L1/2 / 6, 4.8g. 

Estimate £200 - £300

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with a cushion cut sapphire of 2.03 carats in a cluster of round brilliant cut diamonds, the band accented by further round brilliant cut diamonds, full British hallmarks, size M1/2 / 6.5, 6.2g. 

Estimate £1,200 - £1,600

A YELLOW SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with a cushion cut yellow sapphire of approximately 2.10 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 0.4-0.6 carats, stamped PLAT, size N1/2 / 7, 4.1g. 

Estimate £1,000 - £1,500

A DIAMOND FULL ETERNITY RING set all around with a row of round brilliant cut diamonds, the diamonds all totalling 3.5-3.8 carats, no assay marks, size I1/2 / 4.25, 4.3g. 

Estimate £3,500 - £4,500

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with an oval cut aquamarine of approximately 1.70 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 0.5-0.7 carats, stamped 18CT, size N1/2 / 7, 3

Estimate £800 - £1,200

AN ANTIQUE PEARL AND TURQUOISE RING in yellow gold, set with a row of pearls accented by round cabochon turquoise, no assay marks, size I1/2 / 4.5, 1.8g. 

Estimate £100 - £150

A PINK SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with an oval cut pink sapphire of approximately 1.00 carats in a cluster of round brilliant cut diamonds, the diamonds totalling 0.6-0.8 carats, stamped 18CT, size N1/2 / 7,

Estimate £800 - £1,200

AN EMERALD AND DIAMOND CLUSTER RING in yellow gold, set with an octagonal step cut emerald of approximately 0.90 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.1-1.3 carats, no assay marks, size N1/2 / 7, 4.6g. 

Estimate £1,500 - £2,500

A DIAMOND BAND RING in 14ct yellow and white gold, the bicolour band set with a round brilliant cut diamond of approximately 0.20 carats, stamped 14K, size L1/2 / 6, 5.1g. 

Estimate £250 - £350

AN ANTIQUE CORAL CHAIN RING set with five round polished coral on a flexible chain band, no assay marks, size I / 4.25, 2.4g. 

Estimate £200 - £300

A VINTAGE SAPPHIRE AND DIAMOND CLUSTER RING set with a round cut sapphire of approximately 1.03 carats in a cluster of single cut diamonds, the shoulders accented by further single cut diamonds, no assay marks, size M1/2 / 6.5, 2.6g. 

Estimate £1,500 - £2,500

A PLATINUM BAND RING the wide band engraved with foliate motifs, CC&S maker's marks, stamped platinum, size I / 4.25, 9.0g. 

Estimate £250 - £350

A RUBY AND DIAMOND RING set with a row of round cut rubies and round brilliant cut diamonds, no assay marks, size N1/2 / 7, 4.0g.

Estimate £600 - £800

A SOLITAIRE DIAMOND AND SAPPHIRE RING set with a cushion cut diamond of 0.51 carats, the band set with round cut sapphires, no assay marks, size L / 5.75, 2.6g. Accompanied by a gemmological report from the GIA stating that the diamond is E colour an

Estimate £600 - £800

A DIAMOND CLUSTER RING in 18ct white gold, set with a cluster of round brilliant cut diamonds, the diamonds all totalling 0.5-0.7 carats, stamped 18ct, size N / 6.75, 3.6g. 

Estimate £1,000 - £1,500

A DIAMOND BOMBE DRESS RING in 18ct yellow gold, set throughout with round brilliant cut brown diamonds, the diamonds all totalling 21.43 carats, stamped 750, size K1/2 / 5.5, 36.5g. 

Estimate £12,000 - £16,000

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut sapphire of approximately 1.90 carats in a cluster of round brilliant and baguette cut diamonds, the diamonds all totalling 1.0-1.2 carats, stamped PLAT, size N1/2 / 7, 5.9g. 

Estimate £1,500 - £2,500

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum, set with a pear cut aquamarine of approximately 1.40 carats in a cluster of round brilliant cut diamonds, further round brilliant cut diamonds accenting the shoulders, stamped PLAT, size N1/2 / 7, 4

Estimate £800 - £1,200

A PERIDOT AND DIAMOND THREE STONE RING in 18ct white gold, set with an oval cut peridot of approximately 1.34 carats accented on each side by a transitional cut diamond, stamped 18CT, size N1/2 / 7, 3.1g. 

Estimate £600 - £800

NO RESERVE - A DIAMOND HALO ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of approximately 1.00 carat in a border of round brilliant cut diamonds, the band set with further diamonds, full British hallmarks, size K / 5.25, 4.2g. 

Estimate £1,000 - £1,500

A BROWN AND WHITE DIAMOND RING in 14ct white gold, set with a trillion cut brown diamond of approximately 0.52 carats in a border of round brilliant cut diamonds, the bifurcated band set with further diamonds, stamped 585, size M / 6.25, 3.7g. 

Estimate £800 - £1,200

AN EMERALD, DIAMOND AND ENAMEL CLUSTER RING in yellow gold, set with a cushion cut emerald of 5.22 carats in a cluster of round brilliant cut diamonds all totalling 1.16 carats, accented by a border of green enamel, no assay marks, size P1/2 / 7.75,

Estimate £2,500 - £3,500

AN EMERALD AND DIAMOND RING in 18ct yellow gold, set with an octagonal step cut emerald in a two row border of round brilliant cut diamonds, stamped 18K, size K1/2 / 5.5, 7.6g. 

Estimate £800 - £1,200

NO RESERVE - AN AMETHYST AND DIAMOND DRESS RING in 9ct white gold, set with an octagonal step cut amethyst accented by trios of round brilliant cut diamonds, full British hallmarks, size L / 5.75, 3.8g. 

Estimate £40 - £60

AN AQUAMARINE AND DIAMOND RING set with three oval cut aquamarines accented by single cut diamonds, no assay marks, size M1/2 / 6.5, 5.1g. 

Estimate £600 - £800

NO RESERVE - AN EMERALD AND DIAMOND CLUSTER RING in platinum, set with a round cut emerald in a cluster of round brilliant and baguette cut diamonds, the band set with further diamonds, stamped PLAT, size M1/2 / 6.5, 3.6g. 

Estimate £400 - £600

A SAPPHIRE AND DIAMOND CLUSTER RING set with a cluster of round and oval cut sapphires accented by single cut diamonds, no assay marks, size L1/2 / 6, 2.8g. 

Estimate £400 - £600

A VINTAGE GOLD BAND RING in 18ct white gold, the band engraved with foliate design, full British hallmarks for Sheffield 1982, size L / 5.75, 2.1g. 

Estimate £80 - £120