AN AQUAMARINE RING in 14ct white gold, set with an octagonal mixed cut aquamarine of approximately 12.68 carats, stamped 585, size J1/2 / 5, 6.0g. 

Estimate £1,200 - £1,600

BOODLES, A DIAMOND AMARI RING in platinum, the band set with Asscher cut diamonds, Boodles maker's marks, partial British hallmarks, size P / 7.75, 9.8g. Accompanied by a Boodles ring pouch. 

Estimate £1,000 - £1,500

A RUBY AND DIAMOND DRESS RING in 18ct yellow gold, set with an oval cut ruby of approximately 1.00 carat accented by pear cut diamonds all totalling 1.5-1.7 carts, stamped 750, size N / 6.75, 5.4g. 

Estimate £3,000 - £5,000

AN ANTIQUE MOONSTONE AND DIAMOND RING, EARLY 20TH CENTURY in yellow gold, set with a marquise shaped cabochon moonstone in a border of old cut diamonds, each shoulder set with a further diamond, no assay marks, size M / 6.25, 3.8g. 

Estimate £500 - £700

A MULTICOLOURED TOURMALINE BANGLE in yellow gold, set with a row of rose cut pink, green, yellow and blue tourmalines, no assay marks, inner circumference 17.0cm, 20.0g. 

Estimate £2,000 - £3,000

AN OPAL AND DIAMOND CLUSTER RING in yellow gold, set with a cabochon opal in a cluster of round brilliant cut diamonds all totalling 1.8-2.0 carats, no assay marks, size M1/2 / 6.5, 7.2g.

Estimate £4,000 - £6,000

AN AQUAMARINE AND DIAMOND CLUSTER RING in white gold, set with an oval cut aquamarine of approximately 2.83 carats, in a halo of round brilliant cut diamonds to diamond set shoulders, stamped 18K, size P / 7.75, 4.6g.

Estimate £1,500 - £2,500

A PINK OPAL AND DIAMOND DRESS RING in 18ct yellow gold, the ridged band set with polished pink opal accented by round brilliant cut diamonds, stamped K18, size L / 5.75, 6.9g. 

Estimate £1,000 - £1,500

A VINTAGE RUBY AND DIAMOND SNAKE RING in 18ct yellow gold, designed as a five row coiled snake, the head set with a round cut ruby and accented by rose cut diamond set eyes, stamped 750, size T / 9.75, 17.2g. 

Estimate £1,500 - £2,500

A RUBY, SAPPHIRE AND DIAMOND SWEETHEART RING in yellow gold and silver, designed as two interlocking hearts surmounted by a bow motif, each heart set with a cushion cut sapphire and ruby respectively, accented throughout with old and rose cut diamond

Estimate £1,000 - £1,500

AN UNHEATED RUBY AND DIAMOND RING in 14ct white gold, set with an oval cut ruby of 0.95 carats accented by baguette cut diamonds, stamped 585, size L / 5.75, 3.4g. Accompanied by a gemmological report stating that the ruby is of Thai (Siam) origin wi

Estimate £1,000 - £1,500

AN ANTIQUE SAPPHIRE AND DIAMOND DRESS RING the navette shaped face set with an oval cut sapphire of approximately 0.86 carats in a border of old cut diamonds, no assay marks, size N / 6.75, 2.1g. 

Estimate £3,000 - £5,000

A DIAMOND AND GARNET SNAKE RING in yellow gold, designed as a snake coiled around itself, set with an old cut diamond of approximately 0.30 carats and round cut garnet eyes, no assay marks, size N / 6.75, 9.9g. 

Estimate £1,000 - £1,500

AN ONYX AND DIAMOND RING set with a transition cut diamond of approximately 0.52 carats in an octagonal frame of polished onyx, the band set with further diamonds, no assay marks, size M / 6.25, 4.7g.

Estimate £1,500 - £2,500

JANESICH, AN ART DECO 6.19 CARAT SOLITAIRE DIAMOND RING in platinum, set with a cushion cut diamond of 6.19 carats, the band set with a row of old cut diamonds, signed Janesich, no assay marks, size Q / 8, 4.4g. 

Estimate £50,000 - £70,000

AN ANTIQUE DIAMOND DRESS RING in 18ct yellow gold and platinum, the marquise face set with an old pear cut diamond between two old cut diamonds within a border of old and rose cut diamonds, the diamonds all totalling 1.5-1.8 carats, French import mar

Estimate £3,000 - £5,000

A SAPPHIRE AND DIAMOND RING in platinum, set with a cushion cut blue sapphire of 2.14 carats, accented by pairs of single cut diamonds, no assay marks, size K / 5.25, 1.9g.

Estimate £2,000 - £3,000

A VINTAGE EBONY AND DIAMOND RING in yellow gold and white gold, set with an old mine cut diamond of approximately 0.54 carats, to an ebony border, no assay marks, size N1/2 / 7, 3.8g.

Estimate £1,000 - £1,500

A PINK SPINEL AND DIAMOND CLUSTER RING in 18ct white gold, set with a cushion cut pink spinel of 2.24 carats in a cluster of round brilliant cut diamonds, inscribed 2.24, stamped 750, size O / 7.25, 4.6g. 

Estimate £2,000 - £3,000

AN AMETHYST AND DIAMOND CLUSTER RING in 18ct yellow gold and silver, set with a round cut amethyst in a cluster of rose cut diamonds, the shoulders set with further diamonds, stamped 750, size N1/2 / 7, 5.0g. 

Estimate £400 - £600

AN ANTIQUE SAPPHIRE AND DIAMOND RING in yellow gold, set with three cushion cut sapphires accented by two old cut diamonds, the sapphires all totalling 0.8-1.0 carat, the diamonds all totalling 0.7-0.8 carats, no assay marks, size M / 6.25, 3.7g. 

Estimate £800 - £1,200

AN ANTIQUE DIAMOND RING in 14ct yellow gold, the openwork face set with old cut and rose cut diamonds, stamped 585, size L1/2 / 6, 1.4g. 

Estimate £500 - £700

AN ANTIQUE GEORGIAN DIAMOND CLUSTER RING in yellow gold and silver, the scalloped circular face set with a central rose cut diamond of 8.3mm, within concentric borders of further rose cut diamonds, the diamonds all totalling 6.5-7.5 carats, no assay

Estimate £7,000 - £9,000

AN ANTIQUE TURQUOISE AND DIAMOND RING in 15ct yellow gold, the tapering band set with four cabochon turquoise accented by rose cut diamonds in a floral design, partial British hallmarks, size L1/2 / 6, 2.3g. 

Estimate £300 - £500

BOUCHERON, A DIAMOND ETERNITY RING in 18ct yellow gold, set throughout with round brilliant cut diamonds, signed Boucheron and numbered, stamped 750, size J1/2 / 5, 5.0g. 

Estimate £1,200 - £1,600

A VINTAGE PINK TOURMALINE AND DIAMOND DRESS RING in 18ct yellow gold, the navette shaped face set with a cabochon pink tourmaline accented by round brilliant cut diamonds, stamped 18K, size L1/2 / 6, 11.0g. 

Estimate £600 - £800

A JADEITE JADE RING set with a cabochon jadeite jade of approximately 6.77 carats, no assay marks, size K / 5.25, 3.4g. 

Estimate £500 - £700

A COLOMBIAN EMERALD AND DIAMOND RING in 18ct yellow gold, set with an octagonal step cut emerald of approximately 5.40 carats accented by pairs of round brilliant cut diamonds all totalling 0.9-1.0 carat, stamped 750, size R / 8.5, 11.0g. Accompanied

Estimate £6,000 - £8,000

VAN CLEEF & ARPELS, A VINTAGE CHRYSOPRASE DRESS RING in 18ct yellow gold, set with a cabochon chrysoprase on a twisted band, signed VCA and numbered, French assay marks, size H / 3.75, 5.4g. 

Estimate £1,500 - £2,500

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of 2.32 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 0.84 carats, stamped 750, size N1/2 / 7, 3.5g. 

Estimate £1,500 - £2,500

AN EMERALD HALF ETERNITY RING in white gold, set with a row of step cut emeralds, no assay marks, size O / 7.25, 4.8g. 

Estimate £600 - £800

A VINTAGE EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with three round cut emeralds in a border of round brilliant cut diamonds, full British hallmarks for London 1982, size O1/2 / 7.5, 4.7g.

Estimate £600 - £800

A SMOKY QUARTZ AND DIAMOND ETERNITY RING in 18ct rose gold, set with a central row of baguette cut smoky quartz between two rows of round brilliant cut diamonds, stamped 750, size J1/2 / 5, 16.0g.

Estimate £1,500 - £2,500

A DIAMOND THREE STONE RING in 18ct white gold, set with three round brilliant cut diamonds, the diamonds all totalling 3.63 carats, inscribed 1/2.02 2/1.81, stamped 750, size O1/2 / 7.5, 6.5g. 

Estimate £5,000 - £7,000

A DIAMOND FULL ETERNITY RING set all around with a row of princess cut diamonds all totalling 1.8-2.0 carats, no assay marks, size L / 5.75, 3.8g.

Estimate £1,000 - £1,500

A CITRINE AND DIAMOND RING set with an oval cut citrine of approximately 29.70 carats accented by a row of princess cut diamonds all totalling 1.4-1.6 carats, no assay marks, size U / 10, 15.6g. 

Estimate £600 - £800

BOUCHERON, A DIAMOND DOUBLE TROUBLE SNAKE RING in 18ct white gold, the double finger ring designed as a coiled snake, set with round brilliant cut diamonds, signed Boucheron, stamped Or750, size L1/2 / 6, 14.0g. Accompanied by a Boucheron certificate

Estimate £1,200 - £1,600

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with a pear cut emerald of approximately 5.45 carats in a cluster of round brilliant cut diamonds to diamond set trifurcated shoulders, stamped 750, size N1/2 / 7, 11.1g. 

Estimate £5,000 - £7,000

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with a teal sapphire of 6.11 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.1-1.3 carats, full British hallmarks, size N1/2 / 7, 7.0g. 

Estimate £2,500 - £3,500

A BLUE TOPAZ BOMBE RING in 18ct yellow gold, the domed face set with oval cut blue topaz, stamped 18kt, size O / 7.25, 11.0g. 

Estimate £800 - £1,200

A PINK DIAMOND AND DIAMOND RING / PENDANT in 18ct white gold, set with an emerald cut pink diamond of 0.90 carats in a border of round brilliant cut pink diamonds within a cluster of marquise and round brilliant cut diamonds all totalling 3.12 carats

Estimate £12,000 - £16,000

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut sapphire of approximately 4.20 carats within a cluster of round brilliant cut diamonds, the band set with further diamonds, the diamonds all totalling 1.3-1.5 carats, no assay mark

Estimate £4,000 - £6,000

A YELLOW SAPPHIRE AND DIAMOND RING set with an octagonal step cut yellow sapphire of approximately 2.62 carats, the stepped shoulders set with single cut diamonds, no assay marks, size M1/2 / 6.5, 4.6g.

Estimate £1,000 - £1,500

A BURMA NO HEAT RUBY AND DIAMOND RING in 18ct white gold, set with a cushion cut ruby of 2.00 carats in a border of round brilliant cut diamonds, the bifurcated band set with further diamonds, partial British hallmarks, size L / 5.75, 4.7g. Accompani

Estimate £15,000 - £20,000

A PINK TOURMALINE AND DIAMOND RING in white gold, set with a pear cut pink tourmaline of approximately 3.87 carats between two tapered baguette cut diamonds, no assay marks, size Q / 8.25, 3.3g.

Estimate £1,500 - £2,500

A SAPPHIRE AND DIAMOND RING in platinum, set with five oval cut sapphires, accented by round brilliant cut diamonds, full British hallmarks, size O / 7.25, 4.7g. 

Estimate £1,000 - £1,500

TIFFANY & CO., A DIAMOND OPEN WEAVE RING in platinum, the ring in a woven design set throughout with round brilliant cut diamonds, signed Tiffany & Co. France, stamped PT950, size N1/2 / 7, 11.0g. 

Estimate £2,000 - £3,000

A SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct yellow gold, set with a princess cut diamond of 3.65 carats, full British hallmarks, size K / 5.25, 6.1g.

Estimate £15,000 - £25,000

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with an octagonal step cut sapphire in a stylised border of French cut sapphires and round brilliant cut diamonds, stamped 18K, size N / 6.75, 4.5g.

Estimate £1,000 - £1,500

A COLOMBIAN EMERALD AND DIAMOND THREE STONE RING in yellow gold, set with an octagonal step cut emerald of approximately 1.41 carats, accented by two round brilliant cut diamonds, the diamonds both totalling 0.9-1.0 carat, no assay marks, size M1/2 /

Estimate £4,000 - £6,000

A SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with an oval cut sapphire in a cluster of old cut diamonds, no assay marks, size N1/2 / 7, 2.8g. 

Estimate £600 - £800

AN ART DECO DIAMOND DRESS RING in yellow gold, the openwork geometric face set single cut diamonds, no assay marks, size M / 6.25, 2.2g. 

Estimate £300 - £500

A VINTAGE AQUAMARINE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an octagonal step cut aquamarine of approximately 2.22 carats in a cluster of round brilliant cut diamonds, full British hallmarks for Birmingham 1984, size L / 5.75, 3.3g. 

Estimate £600 - £800

A RUBY AND DIAMOND CLUSTER RING set with a round cut ruby of 0.86 carats in a cluster of round brilliant cut diamonds, no assay marks, size K1/2 / 5.25, 3.0g.

Estimate £800 - £1,200

AN ANTIQUE CARNELIAN INTAGLIO RING in 9ct yellow gold, set with an oval carved carnelian intaglio depicting the bust of a classical woman, stamped 9ct, size U / 10, 8.1g. 

Estimate £500 - £700

A ROSE CUT DIAMOND CLUSTER RING in silver and yellow gold, set with a cluster of rose cut diamonds of various sizes to blackened silver, to rose cut diamond set shoulders, no assay marks, size N1/2 / 7, 7.9g. 

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with a round cut sapphire of 0.92 carats between two round brilliant cut diamonds totalling 0.72 carats, unmarked, size M / 6.25, 3.5g.

Estimate £1,200 - £1,600

A RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut ruby of approximately 1.10 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.2-1.5 carats, stamped 750, size O / 7.25, 6.4g.

Estimate £2,000 - £3,000

AN AQUAMARINE DRESS RING in 14ct yellow gold, set with an octagonal mixed cut aquamarine of approximately 7.40 carats within a stylised border, stamped 585, size L1/2 / 6, 4.0g. 

Estimate £600 - £800

A SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of approximately 4.85 carats, marked indistinctly, size N / 7.5, 4.0g. 

Estimate £25,000 - £35,000

A PEARL AND DIAMOND COCKTAIL RING in 18ct yellow gold, set with a pearl of 15.5mm accented by tapered baguette cut diamonds and pave set round brilliant cut diamonds, the diamonds all totalling 3.0-3.2 carats, stamped 750, size M / 6.25, 28.3g.

Estimate £2,500 - £3,500

A TANZANITE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut tanzanite of approximately 2.13 carats, in a halo of round brilliant cut diamonds leading a diamond set bifurcated band, stamped 18K, size O / 7.25, 4.0g.

Estimate £800 - £1,200

A PINK TOURMALINE AND DIAMOND RING in white gold, set with an oval cut pink tourmaline of approximately 3.87 carats, the shoulders set with round brilliant cut diamonds, no assay marks, size Q1/2 / 8.5, 7.1g.

Estimate £1,500 - £2,500

A RUBY AND DIAMOND CLUSTER RING in platinum, set with a cushion cut ruby between two oval cut rubies within a cluster of round brilliant cut diamonds, the diamonds totalling 1.6-1.8 carats, stamped PLAT, size P1/2 / 8, 9.2g.

Estimate £2,000 - £3,000

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set to the centre with an oval cut sapphire of approximately 5.70 carats, to a surround of round brilliant cut diamonds, to bifurcated shoulders, stamped 750, size N1/2 / 7, 7.5g. 

Estimate £2,000 - £3,000

A PRASIOLITE, ONYX, GARNET AND DIAMOND COCKTAIL RING in 18ct rose gold, set with an oval fancy mixed cut prasiolite in a stylised mount set with cabochon onyx, round cut green and orange garnets and yellow sapphires, accented by round brilliant cut d

Estimate £2,000 - £3,000

RENE BOIVIN, A DIAMOND BOMBE RING in 18ct yellow gold, set to the centre with an old European cut diamond of approximately 2.28 carats on a stylised dome set with round brilliant cut diamonds, maker's mark, French assay marks, size H1/2 / 4, 9.0g. 

Estimate £25,000 - £35,000

CARTIER, A STAR RUBY AND DIAMOND RING in platinum, set with a cabochon star ruby of approximately 76.03 carats in a border of round brilliant cut diamonds, signed Cartier and numbered, stamped Pt, size L1/2 / 6, 21.3g. 

Estimate £10,000 - £15,000

A VINTAGE EMERALD AND DIAMOND RING in 18ct yellow gold, in abstract form set with round brilliant cut diamonds and round cut emeralds, full British hallmarks for London 1970, size L1/2 / 6, 7.2g.

Estimate £250 - £350

A BURMA NO HEAT RUBY AND DIAMOND DRESS RING in 18ct white gold, set with an octagonal mixed cut ruby of 1.93 carats on a stylised openwork band set with round brilliant cut diamonds, stamped 750, size N / 6.75, 13.7g. Accompanied by a gemmological re

Estimate £10,000 - £15,000

A BURMA NO HEAT SAPPHIRE AND DIAMOND RING set with a cushion cut sapphire or 6.36 carats, in a concentric border of round brilliant cut diamonds and calibre cut sapphires, the diamonds all totalling 1.4-1.5 carats, no assay marks, size N / 6.5, 11.7g

Estimate £20,000 - £30,000

A DIAMOND HEART DRESS RING set with a triangular diamond within a heart shaped border set with old cut diamonds all totalling 1.8-2.2 carats, no assay marks, size S / 9.25, 11.5g. 

Estimate £6,000 - £8,000

A KUNZITE AND SAPPHIRE CHIPMUNK RING in rose gold, designed as a chipmunk eating a nut, set with an oval cut kunzite of approximately 23.66 carats, pave set throughout with pink sapphires totalling 6.5-6.8 carats and tsavorite garnet eyes, stamped 75

Estimate £2,500 - £3,500

AN EMERALD AND DIAMOND RING in 18ct rose gold, set to the centre with an octagonal step cut diamond of approximately 0.65 carats within a border of calibre cut emeralds and further round brilliant cut diamonds, the bifurcated shoulders set with furth

Estimate £2,000 - £3,000

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with a round brilliant cut diamond in a cluster of round cut sapphires accented by a further border of round brilliant cut diamonds, the diamonds all totalling 0.8-1.0 carat, the sapphires t

Estimate £600 - £800

A RETRO RUBY AND DIAMOND RING in yellow gold, the stylised ring set with an oval cut ruby accented by a row of calibre cut rubies and single cut diamonds, no assay marks, size J / 4.75, 6.3g. 

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND BAND RING in 18ct yellow gold, set with an oval cut sapphire of 0.70 carats accented by pave set round brilliant cut diamonds, within a beaded border, inscribed S0.70 D0.15, stamped 18KT, size N / 6.75, 11.2g. 

Estimate £1,500 - £2,500

A RUBY AND DIAMOND DRESS RING in white gold, set with an octagonal step cut ruby in a stylised cluster of French cut rubies and round brilliant cut diamonds, stamped 18K, size N / 6.75, 4.3g.

Estimate £1,000 - £1,500

VAN CLEEF & ARPELS, A VINTAGE LAPIS LAZULI DRESS RING in 18ct yellow gold, set with a cabochon lapis lazuli on a twisted band, signed VCA and numbered, French assay marks, size I / 4.25, 5.8g. 

Estimate £1,500 - £2,500

AN ANTIQUE RUBY AND DIAMOND CLUSTER RING, 1911 in 18ct yellow gold, set with an old cut diamond in a cluster of round cut rubies accented by rose cut diamonds, partially obscured British hallmarks for Chester 1911, size N / 6.75, 2.4g. 

Estimate £300 - £500

A DIAMOND CLUSTER RING in silver, set with a rose cut diamond of 9.6mm in a cluster of rose cut diamonds, the band set all around with a row of rose cut diamonds, no assay marks, size L / 5.75, 8.4g.

Estimate £5,000 - £7,000

AN ANTIQUE CARNELIAN INTAGLIO DRESS RING, 19TH CENTURY in yellow gold, set with a carnelian intaglio carved to depict a coat of arms with the motto ' CONSTANTIA. ET. VIRTUTE', no assay marks, size O / 7.25, 22.9g. 

Estimate £1,500 - £2,500

A DIAMOND PLAQUE RING the geometric face set with transitional and old European cut diamonds, the band accented by further diamonds, the diamonds all totalling 1.8-2.0 carats, no assay marks, size L1/2 / 6, 5.1g.

Estimate £2,000 - £3,000

A RUBY AND DIAMOND RING in 18ct white gold, set with an octagonal step cut ruby of approximately 0.70 carats, between stepped diamond set shoulders, the band engraved with stylised detailing, full British hallmarks, size N / 6.75, 2.9g.

Estimate £600 - £800

A PINK TOURMALINE AND DIAMOND CLUSTER RING in white gold, set with an octagonal step cut pink tourmaline of approximately 6.13 carats, in a border of single cut diamonds to diamond set shoulders, the diamonds all totalling 0.9-1.0 carats, no assay ma

Estimate £2,000 - £3,000

A SAPPHIRE AND DIAMOND DRESS RING in platinum, set with a fancy cut sapphire of 0.65 carats in a border of round brilliant cut diamonds, inscribed S 0.65 D0.47, stamped PT 900, size O / 7.25, 7.4g. 

Estimate £800 - £1,200

AN EMERALD AND DIAMOND CLUSTER RING in white gold, set with a pear cut emerald of approximately 1.40 carats, in a border of round brilliant cut diamonds to diamond set shoulders, no assay marks, size Q / 8.25, 5.1g.

Estimate £1,500 - £2,500

A SAPPHIRE AND DIAMOND CLUSTER RING in 9ct yellow gold, set with an oval cut sapphire in a cluster of round brilliant cut diamonds, London import marks, size I / 4.25, 1.4g. 

Estimate £100 - £150

VAN CLEEF & ARPELS, A VINTAGE ONYX AND DIAMOND RING in 18ct yellow gold, the tapering band set with a cabochon onyx accented by round brilliant cut diamonds, signed VCA and numbered, French assay marks, size J / 4.75, 2.7g. 

Estimate £1,500 - £2,500

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum and 18ct yellow gold, set with an oval cabochon sapphire in a cluster of old cut diamonds, stamped 18ct PLAT, size J1/2 / 5, 2.0g. 

Estimate £400 - £600

A SOLITAIRE DIAMOND RING in yellow gold, set with a central rose cut diamond of 8.7mm, no assay marks, size O1/2 / 7.5, 3.8g.

Estimate £4,000 - £6,000

AN ANTIQUE CITRINE AND DIAMOND MARQUISE RING in 18ct yellow gold, set with a marquise cut citrine in a border of rose cut diamonds, French assay marks, size L1/2 / 6, 9.0g.

Estimate £1,500 - £2,500

AN UNHEATED RUBY AND DIAMOND RING set with an oval cut ruby of 1.50 carats on a stylised cross-over band set with round brilliant cut diamonds, no assay marks, size M / 6, 4.3g.

Estimate £1,500 - £2,500

A YELLOW DIAMOND AND WHITE DIAMOND THREE STONE RING set with a radiant cut diamond of 0.58 carats between two round cut yellow diamonds both totalling 0.60 carats, no assay marks, size M / 6, 5.2g.

Estimate £1,500 - £2,500

GRAFF, A FANCY INTENSE YELLOW DIAMOND RING set with a radiant cut yellow diamond of 1.00 carats accented on each side by a pear cut white diamond, the diamonds all totalling 1.63 carats, signed Graff, no assay marks, size M / 6.5, 7.7g. Accompanied b

Estimate £5,000 - £7,000

BOUCHERON, A SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of approximately 0.35 carats, signed Boucheron, stamped 950 PT, size K1/2 / 5.5, 7.4g. 

Estimate £500 - £700

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of 2.40 carats in a double border of round brilliant cut diamonds, stamped 750, M1/2 / 6.5, 5.7g. 

Estimate £1,200 - £1,800

AN AQUAMARINE AND DIAMOND RING in platinum, set with an oval cut aquamarine of approximately 2.06 carats, to stylised diamond set shoulders, stamped Pt900, size L1/2 / 6, 13.2g.

Estimate £1,500 - £2,500

A RUBY AND DIAMOND HEART DRESS RING in 18ct white gold, the heart shaped face pave set with round brilliant cut diamonds in a border of round cut rubies, stamped 18KTWG, size L1/2 / 6, 6.8g. 

Estimate £800 - £1,200

A RUBY AND DIAMOND RING in 18ct white gold, set with an oval cut ruby of 0.78 carats, the band accented by round cut diamonds, stamped 750, size K / 5.25, 3.2g. 

Estimate £500 - £700

BOUCHERON, A DIAMOND SERPENT BOHEME RING in 18ct yellow gold, the textured snake body coiled around on itself, set to one end with round cut diamonds, signed Boucheron and numbered, stamped Au750, size O / 7, 8.3g.

Estimate £2,500 - £3,500

A PAIR OF FRENCH DIAMOND AND RUBY EARRINGS in 14ct yellow gold and silver, each set a round brilliant cut diamond in a border of calibre cut rubies and further round brilliant cut diamonds, screwback fittings, French assay marks, 1.3cm, 4.3g. 

Estimate £2,000 - £3,000

A VINTAGE PORTUGUESE RUBY BOMBE RING in 18ct rose gold, pave set with round cut rubies totalling 2.8-3.0 carats to a domed head with stylised border, Portuguese assay marks, size N1/2 / 7, 16.0g.

Estimate £2,500 - £3,500

A CACHOLONG AND DIAMOND RING in 18ct yellow gold, set with a central piece of cacholong carved to depict a rose within a border of round brilliant cut diamonds, stamped 18K, size O / 7.25, 20.3g.

Estimate £1,000 - £1,500

A SAPPHIRE HALF ETERNITY RING in 18ct white gold, the tapering band set with a row of rectangular step cut sapphires, stamped 18K, size J / 4.75, 2.9g. 

Estimate £400 - £600