A BURMA NO HEAT RUBY AND DIAMOND CLUSTER RING in platinum, set with an oval cut ruby of 1.55 carats in a cluster of round brilliant cut diamonds, partial British hallmarks, size N / 6.76,  6.1g. Accompanied by a gemmological report stating that the r

Estimate £5,000 - £7,000

A PINK SAPPHIRE AND DIAMOND RING in platinum, set with a pink sapphire of approximately 1.57 carats, accented by round brilliant cut diamonds, full British hallmarks, size M / 6.25, 5.7g.

Estimate £2,000 - £3,000

A SOLITAIRE DIAMOND RING set with a round brilliant cut diamond of 3.00 carats, the band partially set with round brilliant cut diamonds, stamped 750, size N1/2 / 7, 4.6g.

Estimate £10,000 - £15,000

A BLUE TOPAZ AND DIAMOND RING set with an octagonal step cut blue topaz of approximately 15.98 carats, accented by pave set round brilliant cut diamonds, no assay marks, size P / 7.5, 20.9g. 

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND DRESS RING set with a round cut sapphire of approximately 1.89 carats, accented by sections of pave set round brilliant cut diamonds, stamped 18K, size O1/2 / 7.5, 11.4g. 

Estimate £1,500 - £2,500

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 £25,000 - £35,000

AN AQUAMARINE AND DIAMOND RING set with an octagonal step cut aquamarine, the shoulders set with round brilliant cut diamonds, stamped 750, size P / 7.75, 6.6g. 

Estimate £1,500 - £2,500

A SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of 5.50 carats, partial British hallmarks, size M / 6.25, 11.3g. 

Estimate £20,000 - £30,000

AN ONYX AND DIAMOND RING the polished onyx face set with a round brilliant cut diamond, the shoulders set with further round brilliant cut diamonds, stamped 750, size P1/2 / 8, 6.0g. 

Estimate £1,200 - £1,600

A DIAMOND NAVETTE RING set to the centre with an old cut diamond, the pierced navette border accented by round cut diamonds, stamped 18K, size M1/2 / 6.5, 3.9g. 

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire between two tapered baguette cut diamonds, stamped 10% IRID PLAT, size L / 5.75, 3.9g. 

Estimate £700 - £900

AN EMERALD AND DIAMOND CLUSTER RING set with an oval cut emerald in a cluster of round cut diamonds, the shoulders set with further round cut diamonds, stamped 750, size P / 7.75, 6.1g. 

Estimate £2,000 - £3,000

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with a marquise cut sapphire of approximately 1.10 carats in a cluster of round brilliant cut diamonds, further round brilliant cut diamonds set to the shoulders, the diamonds all totalling 0.7-0.8

Estimate £800 - £1,200

A HESSONITE GARNET AND DIAMOND RING set with a cushion cut hessonite garnet of 7.30 carats, accented on each side with trios of old cut diamonds, the diamonds all totalling 1.73 carats, inscribed 7.30 1.73, stamped 18K, size U / 10, 23.0g. 

Estimate £1,200 - £1,800

A RUBY, EMERALD, AND DIAMOND REVERSIBLE RING in platinum, the central band set to one half with a row of square step cut emeralds and to the other half with French cut rubies, flanked by two articulated rows of round brilliant cut diamonds, full Brit

Estimate £1,000 - £1,500

AN UNHEATED RUBY AND DIAMOND RING set with a cushion cut ruby of 12.10 carats, the shoulders set with tapered baguette cut diamonds, stamped 18K, size N1/2 / 7, 6.3g. Accompanied by a gemmological report stating that the ruby shows no indication of h

Estimate £2,000 - £3,000

A BLACK PEARL, TSAVORITE GARNET AND DIAMOND RING set with a black pearl of 18.0mm, the mount accented by round cut tsavorite garnets and round brilliant cut diamonds, no assay marks, size O / 7.25, 19.4g. 

Estimate £1,200 - £1,800

A SOLITAIRE DIAMOND RING set with a round cut diamond of 3.00 carats, the shoulders set with baguette cut diamonds, stamped PLAT, size M1/2 / 6.5, 4.3g. 

Estimate £15,000 - £20,000

A DIAMOND RING in platinum, set with an emerald cut diamond of 5.33 carats, accented on each side by a further emerald cut diamond, full British hallmarks, size N / 6.75, 10.5g. 

Estimate £30,000 - £40,000

A TANZANITE AND DIAMOND CLUSTER RING in platinum, set with an oval cut tanzanite of approximately 3.70 carats, in a double border of round brilliant cut diamonds, full British hallmarks, size M / 6.25, 8.3g. 

Estimate £1,200 - £1,600

A 4.23 CARAT DIAMOND RING set with a round brilliant cut diamond of 4.23 carats in a border of round brilliant cut diamonds, the bifurcated band set with further diamonds, mount signed GRAFF, no assay marks, size M1/2 / 6.5, 8.1g. Accompanied by a fa

Estimate £70,000 - £80,000

BULGARI, A FINE SAPPHIRE AND DIAMOND TROMBINO RING in 18ct white gold, set with a cushion cut sapphire of 2.79 carats, between rows of baguette cut diamonds, accented by pave set round brilliant cut diamonds, inscribed 2.79, signed Bvlgari, stamped

Estimate £15,000 - £20,000

AN EMERALD AND DIAMOND RING set with a pear cut emerald of approximately 1.87 carats in a border of round brilliant cut diamonds, further round brilliant cut diamonds set to the shoulders, stamped 18K, size L1/2 / 6, 4.1g. 

Estimate £1,200 - £1,600

AN AQUAMARINE AND DIAMOND RING set with a cushion cut aquamarine of 27.50 carats, the stylised mount accented by round brilliant cut diamonds, inscribed 27.50 D0.60, stamped 18K, size W / 11, 31.4g. 

Estimate £2,000 - £3,000

PIAGET, A DIAMOND POSSESSION RING set all around with four rows of round brilliant cut diamonds, one row articulated, the diamonds all totalling 4.0-4.2 carats, signed Piaget and numbered, stamped 750, size N1/2 / 7, 13.0g. 

Estimate £5,000 - £7,000

AN EMERALD AND DIAMOND BALLERINA RING set with an oval cabochon emerald of 8.10 carats in a ballerina mount set with baguette and round brilliant cut diamonds all totalling 2.02 carats, inscribed 8.10 2.02, stamped 18K, size U1/2 / 10.25, 12.8g. 

Estimate £1,500 - £2,500

A DIAMOND BAND RING in platinum, the wide band comprising five rows of round brilliant cut diamonds, the diamonds all totalling 1.04 carats, full British hallmarks, size L1/2 / 6, 14.7g. 

Estimate £1,200 - £1,600

AN EMERALD, DIAMOND AND ENAMEL RING set with a round cut emerald accented by rows of round cut diamonds, relieved in turquoise enamel, stamped 18K, size N1/2 / 7, 3.5g. 

Estimate £500 - £700

AN AQUAMARINE AND DIAMOND RING set with a cushion cut aquamarine of approximately 2.59 carats in a border of round brilliant cut diamonds, further round brilliant cut diamonds set to the shoulders, no assay marks, size M / 6.25, 5.5g. 

Estimate £2,000 - £3,000

A LAVENDER JADEITE JADE AND DIAMOND RING set with an oval cabochon jadeite jade in a border of round brilliant cut diamonds, no assay marks, size S / 9.25, 21.6g. 

Estimate £1,500 - £2,500

AN ORANGE AND YELLOW SAPPHIRE ROSE RING designed as a rose set with various shades of round cut orange and yellow sapphires, stamped 750, size Q / 8.25, 31.3g. 

Estimate £1,200 - £1,600

A RUBY AND DIAMOND CLUSTER RING set with an oval cut ruby in a cluster of round brilliant cut diamonds, on a bifurcated band, no assay marks, size Q1/2 / 8.5, 5.6g. 

Estimate £2,000 - £3,000

A SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of 4.07 carats between two tapered baguette cut diamonds, partial British hallmarks, size S1/2 / 9.25, 6.4g. 

Estimate £18,000 - £22,000

AN ART DECO SAPPHIRE AND DIAMOND CLUSTER RING set with a round cut sapphire of approximately 1.03 carats in a cluster of old cut diamonds, the shoulders set with trios of further old cut diamonds, no assay marks, size M1/2 / 6.5, 2.6g. 

Estimate £1,200 - £1,600

AN AQUAMARINE NAVETTE RING set with a marquise cut aquamarine in an ornate mount, stamped 18K, size I / 4.25, 4.3g. 

Estimate £250 - £350

AN AMETHYST INTAGLIO RING in 18ct white gold, set with an octagonal step cut amethyst carved to depict the bust of a classical woman, stamped 18K, size L / 5.5, 4.4g.

Estimate £500 - £700

A RUBY AND DIAMOND RING in platinum, set with a row of square step cut rubies, accented on each side by a row of princess cut diamonds, full British hallmarks, size M / 6.25, 12.7g. 

Estimate £1,200 - £1,600

AN ANTIQUE AMETHYST AND PASTE CLUSTER RING set with an oval cut amethyst in a cluster of old cut paste stones, no assay marks, size P / 7.75, 11.8g. 

Estimate £300 - £500

A BURMA NO HEAT SAPPHIRE AND DIAMOND THREE STONE RING set with a cushion cut sapphire of 1.60 carats, accented on each side by an old cut diamond, the diamonds both totalling 1.20 carats, stamped 750, size N / 6.75, 6.1g. With a gemmological verbal a

Estimate £3,000 - £5,000

A CEYLON NO HEAT YELLOW SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut yellow sapphire of approximately 2.50 carats in a cluster of round brilliant cut yellow and white diamonds, the diamonds all totalling 0.8-1.0 carats, no assay marks, size

Estimate £1,000 - £1,500

A SAPPHIRE, EMERALD AND DIAMOND RING set with an octagonal step cut sapphire and emerald, accented by two marquise cut diamonds and round brilliant cut diamonds, the diamonds all totalling 1.8-2.0 carats, no assay marks, size M / 6.25, 6.6g. 

Estimate £2,000 - £3,000

A BURMESE RUBY AND DIAMOND THREE STONE RING set with an oval cut ruby of 3.66 carats, accented on each side by a round brilliant cut diamond, the diamonds both totalling 0.9-1.0 carats, stamped 18CT, size N1/2 / 7, 4.9g. 

Estimate £4,000 - £6,000

A DIAMOND AND ENAMEL RING comprising a band of black enamel set with round brilliant cut diamonds, stamped 18K, size N / 6.75, 3.0g. 

Estimate £500 - £700

AN EMERALD AND DIAMOND CLUSTER RING set with an octagonal step cut emerald in a cluster of round brilliant cut diamonds, single cut diamonds set to the shoulders, stamped 750, size Q / 8.25, 6.3g. 

Estimate £2,000 - £3,000

A DIAMOND FLOWER RING set to the centre with a transitional cut diamond of approximately 1.00 carat, the petals set with old cut diamonds, stamped 18CT PLAT, size P / 7.75, 4.9g. 

Estimate £2,500 - £3,500

A 4.62 CARAT COLOMBIAN EMERALD AND DIAMOND RING set with an octagonal step cut emerald of 4.62 carats, the stepped shoulders set with round brilliant cut diamonds, stamped PT950, size M1/2 / 6.5, 6.2g. With a facsimile gemmological report stating tha

Estimate £1,000 - £1,500

AN ORANGE SAPPHIRE AND DIAMOND RING set with a cushion cut orange sapphire of 7.11 carats, accented on each side by four round brilliant cut diamonds, no assay marks, size Q1/2 / 8.5, 9.3g. 

Estimate £1,200 - £1,800

A RUBY AND DIAMOND RING in platinum, set with a row of baguette cut rubies accented on each side by a row of round brilliant cut diamonds, the rubies all totalling 2.8-3.0 carats, full British hallmarks, size M / 6.25, 11.6g. 

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND HALF ETERNITY RING in 18ct yellow and white gold, half set with a row of alternating round cut emeralds and round brilliant cut diamonds, full British hallmarks, size M / 6.25, 3.3g. 

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND DRESS RING in platinum, set with an octagonal step cut sapphire of approximately 1.00 carat, accented by rows of round brilliant and baguette cut diamonds, full British hallmarks, size L1/2 / 6, 8.3g. 

Estimate £1,200 - £1,600

A DIAMOND AND ONYX RING set with a transitional cut diamond in an octagonal border of polished onyx, the shoulders set with round cut diamonds, no assay marks, size L1/2 / 6, 4.4g. 

Estimate £2,000 - £3,000

A DIAMOND AND SAPPHIRE TARGET RING set with an old cut diamond of approximately 0.67 carats in a border of calibre cut sapphires, stamped 18K, size N / 6.75, 2.4g. 

Estimate £2,500 - £3,500

A TANZANITE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut tanzanite of approximately 0.69 carats in a double border of round brilliant cut diamonds, the diamonds all totalling 0.6-0.7 carats, full British hallmarks, size M / 6.26,

Estimate £700 - £900

A CORAL RING set with a large cabochon coral, the mount with engraved foliate details, stamped 750, size M / 6.25, 19.7g. 

Estimate £700 - £900

AN EMERALD AND DIAMOND CLUSTER RING set with an octagonal step cut emerald of approximately 1.00 carat in a cluster of round brilliant cut diamonds, stamped 750, size N / 6.75, 4.6g. 

Estimate £800 - £1,200

A DIAMOND AND SAPPHIRE DRESS RING in platinum, set with four octagonal step cut diamonds in borders of calibre cut sapphires, the diamonds all totalling 0.7-0.8 carats, full British hallmarks, size M / 6.25, 6.4g. 

Estimate £1,200 - £1,600

AN ONYX AND DIAMOND RING the polished onyx face set with a round brilliant cut diamond, the shoulders set with further round brilliant cut diamonds, stamped 750, size P1/2 / 8, 5.3g. 

Estimate £1,200 - £1,600

A SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut sapphire of 1.97 carats in a cluster of round brilliant cut diamonds, stamped 750, size K / 5.25, 4.7g. 

Estimate £400 - £600

A TANZANITE AND DIAMOND RING in 18ct white gold, set with an oval cut tanzanite of approximately 3.00 carats, in a border of round brilliant cut diamonds, further round brilliant cut diamonds set to the bifurcated band, partial British hallmarks, siz

Estimate £800 - £1,200

A DIAMOND FULL ETERNITY RING set all around with a row of round brilliant cut diamonds, no assay marks, size J / 4.75, 2.2g. 

Estimate £400 - £600

A DIAMOND AND GLASS TARGET RING comprising a deep red glass disc set with a round brilliant cut diamond, in a border of further round brilliant cut diamonds, stamped 750, size P1/2 / 8, 4.0g. 

Estimate £800 - £1,200

A DIAMOND THREE STONE RING set with three round brilliant cut diamonds, no assay marks, size R / 8.75, 9.2g. 

Estimate £600 - £800