A DIAMOND FULL ETERNITY RING in white gold, set all around with a row of carre cut diamonds, the diamonds all totalling 3.0-3.5 carats, no assay marks, size O / 7.25, 6.5g. 

Estimate £800 - £1,200

A 5.15 CARAT H COLOUR, VVS2 DIAMOND ENGAGEMENT RING in 18ct white gold, set with an emerald cut diamond of 5.15 carats, accented by trios of round brilliant and tapering baguette cut diamonds, full British hallmarks, size O / 7.25, 5.9g. Accompanied

Estimate £60,000 - £80,000

A GREEN TOURMALINE AND DIAMOND BALLERINA RING in platinum, set with an octagonal step cut green tourmaline of approximately 6.49 carats, in a cluster of tapered baguette cut diamonds, no assay marks, size M / 6.25, 10.1g. 

Estimate £5,000 - £7,000

AN IMPORTANT PARAIBA TOURMALINE AND DIAMOND RING in platinum, set with an oval mixed cut Paraiba tourmaline of 21.24 carats in a double border of round brilliant cut diamonds, the shoulders set with further diamonds, the diamonds all totalling 1.34 c

Estimate £100,000 - £150,000

A FINE COLOMBIAN EMERALD AND DIAMOND RING in 18ct white gold, set with an octagonal step cut emerald of 5.84 carats between two trillion cut diamonds both totalling 2.20 carats, stamped 750, size O / 7.25, 8.9g. Accompanied by a gemmological report s

Estimate £15,000 - £25,000

A 4.16 CARAT UNHEATED KASHMIR SAPPHIRE GYSPY RING in high carat yellow gold, set with a cabochon Kashmir sapphire of 4.16 carats, no assay marks, size P / 7.75, 12.0g. Accompanied by a gemmological report stating that the sapphire is of Kashmir origi

Estimate £15,000 - £25,000

A RUBELLITE TOURMALINE, ROCK CRYSTAL AND DIAMOND DRESS RING in 18ct white gold, comprising a faceted rock crystal set with a pear cut rubellite tourmaline of approximately 7.08 carats, accented by borders of round brilliant cut diamonds, the shoulder

Estimate £3,000 - £5,000

A SOLITAIRE DIAMOND RING in platinum, set with an old cut diamond of 1.75 carats, the shoulders set with single cut diamonds, no assay marks, size M1/2 / 6.5, 2.6g. Accompanied by a facsimile gemmological report stating that the diamond is H colour a

Estimate £6,000 - £8,000

AN ANTIQUE ART DECO BURMA NO HEAT PINK SPINEL AND DIAMOND RING in platinum, set with a cushion cut pink spinel of 3.43 carats, the shoulders set with rose cut diamonds, no assay marks, size N1/2 / 7, 3.3g. Accompanied by a gemmological report stating

Estimate £4,000 - £6,000

A FINE EMERALD AND DIAMOND RING in platinum, set with an octagonal step cut emerald of 2.89 carats, in a border of trillion cut diamonds all totalling 5.0-5.5 carats, stamped PT950, size O1/2 / 7.5, 11.2g.

Estimate £8,000 - £12,000

A FINE CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold and platinum, set with a pear cut sapphire of 2.72 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.8-2.0 carats, stamped 18CT PLAT, size M1/2

Estimate £4,000 - £6,000

ASPREY, A BLUE CHALCEDONY, SAPPHIRE AND DIAMOND COCKTAIL RING in 18ct white gold, the domed body set with a cabochon blue chalcedony in a border of round brilliant cut diamonds, accented by oval cut sapphires, signed Asprey, stamped 750, size N / 6.7

Estimate £3,000 - £5,000

GARRARD, A YELLOW SAPPHIRE DRESS RING in 18ct yellow gold, the geometric face set with rows of round cut yellow sapphires, signed Garrard, stamped 750, size M1/2 / 6.5, 23.5g. 

Estimate £1,000 - £1,500

AN AQUAMARINE AND DIAMOND RING in platinum, set with an octagonal step cut aquamarine of 23.95 carats, the stepped shoulders set with round brilliant cut diamonds, no assay marks, size O / 7.25, 12.8g. 

Estimate £3,000 - £5,000

A 5.46 CARAT TREATED FANCY INTENSE YELLOW DIAMOND RING in platinum, set with an emerald cut yellow diamond of 5.46 carats, accented on each side by a tapered baguette cut diamond, no assay marks, size N1/2 / 7, 7.0g. Accompanied by a gemmological rep

Estimate £10,000 - £15,000

AN EGYPTIAN REVIVAL DIAMOND SCARAB BEETLE POISON RING in 18ct yellow gold, designed as a scarab set throughout with old and round brilliant cut diamonds, opening to reveal a locket compartment, the diamonds all totalling 1.85 carats, no assay marks,

Estimate £3,500 - £4,500

AN OLD CUT DIAMOND CLUSTER RING in 18ct yellow gold, set with an old cut diamond of approximately 0.64 carats in a cluster of further old cut diamonds, the diamonds all totalling 1.4-1.6 carats, full British hallmarks, size L / 5.75, 4.5g. 

Estimate £1,000 - £1,500

AN UNHEATED RUBY AND DIAMOND RING in 18ct white gold, set with a cushion cut ruby of 3.29 carats between two trillion cut diamonds, full British hallmarks, size M1/2 / 6.5, 5.2g. Accompanied by a gemmological report stating that the ruby is of Thai (

Estimate £6,000 - £8,000

AN UNHEATED KASHMIR SAPPHIRE AND DIAMOND THREE STONE RING in yellow gold, set with a cushion cut sapphire of 1.45 carats between two old cut diamonds, the diamonds both totalling 0.9-1.0 carat, marked indistinctly, size K / 5.25, 2.8g. Accompanied by

Estimate £20,000 - £30,000

A SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct yellow gold, set with a cushion cut diamond of 5.02 carats, full British hallmarks, size M1/2 / 6.5, 5.2g.

Estimate £15,000 - £20,000

AN EXCEPTIONAL BURMA NO HEAT SAPPHIRE AND DIAMOND DRESS RING in platinum, set with a cushion cut sapphire of 27.47 carats accented on each side by a tapered baguette cut diamond, Oscar Heyman Bros maker's mark, stamped IRID PLAT, size M1/2 / 6.5, 16.

Estimate £150,000 - £250,000

A CARVED LABRADORITE, SAPPHIRE AND DIAMOND INTAGLIO RING in 18ct yellow gold, set with a labradorite intaglio carved to depict a Hindu god, the shoulders set with clusters of round brilliant cut diamonds and round cut sapphires, stamped 18K, size L /

Estimate £3,000 - £5,000

BOUCHERON, A DIAMOND QUATRE RADIANT EDITION RING in 18ct yellow gold, set with a row of round brilliant cut diamonds, signed Boucheron and numbered, stamped Au750, size Q / 8.25, 17.1g. Current Boucheron retail price £10600 GBP. 

Estimate £2,500 - £3,500

A TURQUOISE AND DIAMOND BOMBE RING in platinum, set with a cabochon turquoise in a stylised mount set with rows of single cut diamonds, the diamonds all totalling 2.4-2.6 carats, no assay marks, size J1/2 / 5, 10.0g.

Estimate £2,000 - £3,000

A SOLITAIRE DIAMOND RING in 18ct yellow gold, set with a radiant cut diamond of 1.01 carats, full British hallmarks, size K / 5.25, 3.3g. Accompanied by a facsimile gemmological report from GIA stating that the diamond is F colour and VS2 clarity. 

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

AN ANTIQUE CARNELIAN CAMEO RING in yellow gold, set with an oval carnelian cameo depicting the profile of a classical man, no assay marks, size J1/2 / 5, 7.2g. 

Estimate £2,000 - £3,000

AN EMERALD AND DIAMOND DRESS RING in platinum, set with an octagonal step cut emerald of 1.72 carats, on a tapered band set with round brilliant and baguette cut diamonds all totalling 1.46 carats, stamped Pt900, size O / 7.25, 12.6g.

Estimate £1,000 - £1,500

A SOLITAIRE DIAMOND RING in 22ct yellow gold, set with an old cut diamond of 1.50 carats on a hammered gold shank, no assay marks, size M / 6.25, 8.2g. Accompanied by a facsimile gemmological report stating that the diamond is L colour and SI1 clarit

Estimate £3,000 - £5,000

A BURMA NO HEAT RUBY AND DIAMOND RING in platinum, set with an oval cut ruby of 6.21 carats accented by single and old cut diamonds, no assay marks, size L / 5.75, 4.0g. Accompanied by a gemmological report stating that the ruby is of Burmese (Myanma

Estimate £10,000 - £15,000

AN UNTREATED EMERALD AND DIAMOND DRESS RING in platinum, set with an octagonal step cut emerald of 5.95 carats in a border of round brilliant cut diamonds, the stylised shoulders set with further diamonds, the diamonds all totalling 1.86 carats, no a

Estimate £12,000 - £16,000

AN UNHEATED RUBY, ENAMEL, AND DIAMOND DRESS RING in 18ct rose gold, designed as an articulated blue enamel flower opening to reveal an oval cut ruby of 2.80 carats, accented by round brilliant cut diamonds, the articulated trifurcated band set with r

Estimate £25,000 - £35,000

AN ANTIQUE FRENCH DIAMOND RING in 18ct yellow gold, set with a cushion shaped diamond between two rose cut diamonds, French assay marks, size J1/2 / 5, 4.7g.

Estimate £6,000 - £8,000

AN ANTIQUE GEORGIAN DIAMOND CLUSTER RING in 18ct yellow gold and silver, the round face set with a cluster of rose cut diamonds, no assay marks, size N1/2 / 7, 9.5g.

Estimate £2,000 - £3,000

A VINTAGE DIAMOND TOI ET MOI RING in 18ct yellow gold, set with two round brilliant cut diamonds of approximately 1.00 and 1.10 carats respectively, full British hallmarks for 1969, size P / 7.75, 4.1g.

Estimate £1,500 - £2,500

A RUBY AND DIAMOND COBRA SNAKE DRESS RING in 18ct white gold, designed as a coiled cobra set throughout with round brilliant cut diamonds and round cut rubies, the rubies all totalling 10.83 carats, the diamonds all totalling 7.80 carats, stamped 750

Estimate £3,000 - £5,000

BULGARI, A B.ZERO 1 RING in 18ct white gold, with engraved lettering 'BVLGARI' to the sides, signed Bvlgari and numbered, stamped Au750, size L1/2 / 6, 6.0g. RRP £1670.

Estimate £400 - £600

A COLOMBIAN EMERALD AND DIAMOND THREE STONE RING in platinum, set with an octagonal step cut emerald of 3.50 carats between two old European cut diamonds both totalling 1.0-1.1 carats, partial British hallmarks, size M1/2 / 6.5, 6.7g. Accompanied by

Estimate £10,000 - £15,000

A SPINEL AND DIAMOND CLUSTER RING in platinum, set with a rectangular cushion mixed cut spinel of 1.98 carats, in a cluster of round brilliant cut diamonds all totalling 0.88 carats, stamped Pt900, size P1/2 / 8, 7.8g.

Estimate £1,500 - £2,500

CHAUMET, A DIAMOND RING in 18ct yellow gold, the bombe face set with clusters of round brilliant cut diamonds, signed Chaumet Paris and numbered, stamped 750, size K1/2 / 5.5, 9.8g.

Estimate £1,000 - £1,500

A 5.00 CARAT DIAMOND AND SAPPHIRE DRESS RING in 18ct white gold, set to the centre with a square emerald cut diamond of 5.00 carats in an oval surround of step cut sapphires, the sapphires all totalling 5.16 carats, in a border of pave set round bril

Estimate £60,000 - £80,000

A TANZANITE, PINK SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, comprising a cabochon tanzanite of approximately 38.85 carats in a cluster of alternating oval cut pink sapphires and round brilliant cut diamonds, the pink sapphires totalling 5

Estimate £4,000 - £6,000

BULGARI, A PEARL AND DIAMOND DRESS RING in 18ct yellow gold, set with a pearl of 15.8mm in a border of marquise and round brilliant cut diamonds, the shoulders set with further marquise cut diamonds, the diamonds all totalling 2.0-2.5 carats, signed

Estimate £7,000 - £9,000

A VINTAGE DIAMOND GYPSY RING in 18ct yellow gold, set with an old cushion cut diamond of 3.94 carats, partial British hallmarks, size Z+1 / 13, 17.0g. 

Estimate £15,000 - £20,000

A SOLITAIRE DIAMOND RING in platinum, set with an old cut diamond of 1.51 carats accented on each side by further old cut diamonds, no assay marks, size N1/2 / 7, 3.2g. Accompanied by a facsimile gemmological report from GIA stating that the diamond

Estimate £4,000 - £6,000

A BURMA NO HEAT RUBY AND DIAMOND RING in 18ct white and yellow gold, set with a cushion cut ruby of 2.03 carats in a border of round brilliant cut diamonds, the band set with rows of princess and round brilliant cut diamonds, the diamonds all totalli

Estimate £15,000 - £25,000

THREE RUBY, DIAMOND AND SAPPHIRE FULL ETERNITY RINGS in 18ct white gold, one set all around with a row of square step cut sapphires all totalling 2.36 carats, inscribed S2.36, stamped 750, size K1/2 / 5.5, 4.0g, one set all around with a row of squar

Estimate £1,500 - £2,500

VAN CLEEF & ARPELS, A DIAMOND PHILIPPINES RING in 18ct yellow gold, pave set with a section of round brilliant cut diamonds, signed VCA and numbered, French assay marks, size L1/2 / 6, 12.2g. 

Estimate £1,000 - £1,500

A FANCY DEEP BROWNISH ORANGE DIAMOND RING in platinum, set with a fancy deep brownish orange round brilliant cut diamond of 0.35 carats in a border of round brilliant cut diamonds, further diamonds set to the shoulders, stamped PT950, size K / 5.25,

Estimate £1,200 - £1,600

PIAGET, A DIAMOND SPINNING POSSESSION RING in 18ct yellow gold, comprising an articulated section set with a round brilliant cut diamond, signed Piaget and numbered, stamped 1999 750, size O / 7.25, 19.6g. 

Estimate £1,000 - £1,500

VAN CLEEF AND ARPELS, A VINTAGE CHRYSOPRASE AND DIAMOND PHILIPPINES RING in 18ct yellow gold, set with a central panel of round brilliant cut diamonds, between pieces of polished chrysoprase, signed Van Cleef & Arpels and numbered, French maker's mar

Estimate £2,000 - £3,000

AN ANTIQUE COLOMBIAN EMERALD AND DIAMOND RING in yellow gold, set with a cabochon emerald of approximately 6.39 carats, the domed shank set with old and rose cut diamonds, no assay marks, size Q1/2 / 8.25, 8.2g. Accompanied by a gemmological report s

Estimate £8,000 - £12,000

AN UNHEATED SAPPHIRE AND DIAMOND CROSSOVER RING in 18ct white gold, set with a round cut purplish pink sapphire of 5.14 carats and a cushion cut blue sapphire of 6.98 carats, the band in a crossover design pave set with round brilliant cut diamonds,

Estimate £30,000 - £50,000

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a cushion cut sapphire of 4.78 carats, the mount set with round brilliant cut diamonds, stamped 18K, size L / 5.75, 12.3g. With a gemmological verbal assessment stating that the

Estimate £4,000 - £6,000

A JADEITE JADE DRESS RING in 18ct yellow gold, the tapering band set with a cabochon jadeite jade, full British hallmarks, size N1/2 / 7, 16.8g. 

Estimate £600 - £800

A FANCY RED DIAMOND FLOWER DRESS RING in 18ct white gold, the articulated ring opening to reveal a radiant cut fancy red diamond of 1.12 within six flower petals pave set with round brilliant cut diamonds, further round brilliant cut diamonds set to

Estimate £50,000 - £70,000

A BURMA NO HEAT RUBY AND DIAMOND CLUSTER RING in 18ct white and yellow gold, set with an oval cut ruby of 4.58 carats in a cluster of oval rose cut diamonds and round cut rubies, the band set with round brilliant cut diamonds, the diamonds all totall

Estimate £60,000 - £80,000

AN E COLOUR SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct white gold, set with a pear cut diamond of 4.03 carats in a border of round brilliant cut diamonds, the band set with further round brilliant cut diamonds, stamped 18K, size P / 7.75, 4.2g. Accomp

Estimate £40,000 - £60,000

A PINK TOURMALINE AND DIAMOND DRESS RING in 18ct white gold, set an oval cut pink tourmaline of 3.30 carats in an openwork border set with round brilliant cut diamonds, the diamonds all totalling 1.2-1.4 carats, no assay marks, size N1/2 / 7, 8.9g.

Estimate £1,500 - £2,500

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with a round cut sapphire of 4.00 carats between two tapered baguette cut diamonds, stamped 10% IRID PLAT, size U1/2 / 10.5, 5.6g. Accompanied by a gemmological report stating that the sapph

Estimate £4,000 - £6,000

AN UNHEATED PADPARADSCHA SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a rectangular cushion mixed cut orangy pink Padparadscha sapphire of 1.04 carats, in a cluster of round brilliant cut diamonds, the stylised openwork band set with

Estimate £3,000 - £5,000

A VINTAGE CEYLON NO HEAT SAPPHIRE, CITRINE AND DIAMOND COCKTAIL RING in 18ct yellow gold, set to the centre with an oval cut citrine of approximately 18.38 carats in a border of cushion cut blue sapphires, accented by alternating round brilliant cut

Estimate £12,000 - £16,000

A TURQUOISE BOMBE RING in silver, set with pieces of polished turquoise, stamped 925, size K / 5.25, 12.9g. 

Estimate £400 - £600

A PIGEON'S BLOOD BURMA NO HEAT RUBY AND DIAMOND CLUSTER RING in 18ct white and yellow gold, set with a cushion cut ruby of 0.81 carats in a stylised cluster of tapered baguette and round brilliant cut diamonds, stamped 18K, size N / 6.75, 4.9g. Accom

Estimate £2,500 - £3,500

CARTIER, A PERIDOT AND IOLITE DRESS RING in 18ct white gold, the circular face set fancy cut peridots and iolites, signed Cartier, Italian assay marks, stamped 750, size L / 5.75, 17.6g. 

Estimate £2,000 - £3,000

A DIAMOND DRESS RING in 18ct yellow gold, set with an old European cut diamond of 3.04 carats accented by a row of princess cut diamonds, the band pave set with round brilliant cut diamonds, stamped 750, size M1/2 / 6.5, 9.6g. 

Estimate £25,000 - £35,000

A BLACK OPAL DRESS RING in 18ct yellow gold, the wide band set with cabochon black opals and opals, stamped 18K, size K1/2 / 5.5, 21.6g. 

Estimate £3,500 - £4,500

A DIAMOND AND SHELL CAMEO RING in 18ct yellow gold, set with a round shell cameo carved to depict a putto in a border of round brilliant cut diamonds, stamped 18K, size M / 6.25, 16.2g. 

Estimate £2,500 - £3,500

AN EMERALD AND DIAMOND CLUSTER RING in platinum, set with an octagonal step cut emerald of 2.53 carats, in a cluster of round brilliant cut diamonds, the shoulders set with further diamonds, the diamonds all totalling 1.04 carats, stamped Pt900, size

Estimate £1,500 - £2,500