A FRENCH NATURAL SALTWATER PEARL AND DIAMOND RING, EARLY 20TH CENTURY set with a pearl of 8.1mm, accented by old cut diamonds, partially obscured French maker's mark, partially obscured French assay mark, size L1/2 / 6, 4.8g. Accompanied by a gemmolo

Estimate £2,000 - £3,000

NO RESERVE - AN ANTIQUE RUBY HORSESHOE RING, 1911 in 9ct yellow gold, designed as a horse hoof, the horseshoe set with cushion cut rubies, full British hallmarks for Birmingham 1911, size L / 5.75, 2.6g. 

Estimate £300 - £500

TIFFANY & CO., A GOLD WEDDING BAND RING the ring of plain design, signed Tiffany & Co., stamped AU750, size R / 8.5, 4.0g. Accompanied by the original Tiffany & Co. ring box and outer box. 

Estimate £300 - £500

A BLUE TOPAZ AND DIAMOND RING set with an octagonal step cut blue topaz of approximately 12.16 carats, between two tapered baguette cut diamonds, stamped 750, size O / 7.25, 9.5g. 

Estimate £400 - £600

M. BUCCELLATI, A DIAMOND BAND RING the openwork foliate style band set all around with round brilliant cut diamonds, signed M. Buccellati Italy, Italian assay marks, stamped 750, size N / 6.75, 7.6g. 

Estimate £6,000 - £8,000

AN UNTREATED JADEITE JADE AND DIAMOND RING set with a cabochon jadeite jade, accented by tapered baguette cut diamonds, stamped PT900 18K, size L1/2 / 6, 9.3g.  

Estimate £400 - £600

MARIO BUCCELLATI, A TURQUOISE AND DIAMOND RING set with a sugarloaf cabochon turquoise, the openwork border accented by old cut diamonds, signed M. Buccellati, no assay marks, size K1/2 / 5.5, 5.6g. 

Estimate £3,000 - £5,000

CARTIER, AN EMERALD AND ONYX PANTHERE LAKARDA RING in 18ct white gold, designed as a coiled panther, the eyes set with pear cut emeralds, the nose set with polished onyx, signed Cartier and numbered, French maker's mark, French assay marks, stamped 7

Estimate £5,000 - £7,000

A FINE OPAL AND DIAMOND RING set with an oval cabochon opal of approximately 10.33 carats, the shoulders set with round cut diamonds, no assay marks, size M1/2 / 6.5, 4.8g. 

Estimate £1,000 - £1,500

AN ONYX AND DIAMOND FLOWER RING designed as a camellia flower, set to the centre with a round brilliant cut diamond, the petals set with polished onyx in borders of further round brilliant cut diamonds, stamped 18K, size L / 5.75, 16.1g. 

Estimate £1,000 - £1,500

A VINTAGE TURQUOISE AND DIAMOND DRESS RING in yellow gold, set with a sugarloaf cabochon turquoise accented by round brilliant cut diamonds, on a double curb link band, no assay marks, size I1/2 / 4.5, 11.7g. 

Estimate £500 - £700

FRED PARIS, A FORCE 10 RING in 18ct yellow gold and steel, comprising three rows of steel ropework, accented by sections of fluted gold, signed Fred Paris, French assay marks, stamped OR750, size P / 7.75, 5.8g. 

Estimate £300 - £500

A WATERMELON TOURMALINE AND DIAMOND RING set with an octagonal step cut watermelon tourmaline of 29.29 carats in a border of round brilliant cut diamonds, the shoulders set with rows of further diamonds, the diamonds totalling 1.5-1.7 carats, stamped

Estimate £7,000 - £9,000

AN ANTIQUE 2.40 CARAT UNHEATED RUBY AND PEARL RING in yellow gold, set with an oval cut ruby of 2.40 carats in a cluster of seed pearls, no assay marks, size P / 7.75, 3.5g. Accompanied by a facsimile gemmological report stating the ruby of East Afri

Estimate £600 - £800

A PARAIBA TOURMALINE AND DIAMOND RING in platinum, set with a cushion cut paraiba tourmaline of approximately 2.15 carats in a border of round brilliant cut diamonds, inscribed 0.48ct, full British hallmarks, size K1/2 / 5.5, 6.5g. 

Estimate £2,000 - £3,000

AN ANTIQUE DIAMOND DRESS RING, EARLY 20TH CENTURY the rectangular face set with old cut diamonds totalling 0.9-1.1 carats, no assay marks, size P1/2 / 8, 2.1g. 

Estimate £600 - £800

A GREEN TOURMALINE AND DIAMOND RING set with a sugarloaf cabochon green tourmaline of 24.72 carats, the stylised gallery and shoulders set with round brilliant cut diamonds, inscribed 27.72 D0.66, stamped K18, size N / 6.75, 16.2g. 

Estimate £3,000 - £5,000

AN ART DECO MINT TOURMALINE AND DIAMOND RING in platinum and 18ct white gold, set with an octagonal step cut mint tourmaline of approximately 4.61 carats, the shoulders set with round cut diamonds, stamped 18CT&PT, size K1/2 / 5.5, 2.7g. 

Estimate £3,000 - £5,000

A RUBY AND DIAMOND DRESS RING set with a row of round cut rubies and a row of round brilliant cut diamonds, no assay marks, size M / 6.25, 6.4g. 

Estimate £300 - £500

AN ANTIQUE DIAMOND SNAKE RING in yellow gold, designed as a coiled snake set with an old cut diamond, on a later gold band, band with partially obscured full British hallmarks for 18 carat gold, size P / 7.75, 5.8g. 

Estimate £400 - £600

DAVID WEBB, A DIAMOND AND ENAMEL MOTIF RING the diamond shaped ring decorated with black enamel, accented by rows of round brilliant cut diamonds, signed David Webb and numbered, stamped 18K 900PT, size L1/2 / 6, 11.6g.

Estimate £2,000 - £3,000

A DIAMOND AND EMERALD SNAKE RING designed as two coiled snakes, pave set throughout with round brilliant cut diamonds, the eyes set with round cut emeralds, the diamonds totalling 2.4-2.5 carats, stamped 18K, size M1/2 / 6.5, 14.3g. 

Estimate £3,000 - £5,000

A PINK SAPPHIRE AND DIAMOND RING in platinum, set with an oval cut pink sapphire of approximately 2.40 carats in a halo of round brilliant cut diamonds, the band set with further diamonds, partial British hallmarks, size L / 5.75, 6.2g. 

Estimate £1,200 - £1,600

A DIAMOND AND EMERALD GYPSY RING in 18ct yellow gold, set with a round brilliant cut diamond between two round cut emeralds, full British hallmarks, size K1/2 / 5.5, 6.0g. 

Estimate £400 - £600

A FINE SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of approximately 5.32 carats between trios of round brilliant cut diamonds, the diamonds totalling 0.8-0.9 carats, stamped 18K, size N / 6.75, 7.1g. 

Estimate £7,000 - £9,000

A DIAMOND FLOWER BOMBE RING comprising a cluster of floral clusters set with round brilliant cut diamonds, stamped 18K, size O / 7.25, 7.8g. 

Estimate £400 - £600

A 2.68 CARAT UNHEATED RUBY RING set with an oval cut ruby of 2.68 carats, no assay marks, size M / 6.25, 10.1g. Accompanied by a facsimile gemmological report stating the ruby of East African origin with no evidence of heat treatment. 

Estimate £1,400 - £1,800

A DIAMOND FULL ETERNITY RING set all around with a row of round brilliant and round cut diamonds, the diamonds totalling 0.8-0.9 carats, no assay marks, size M / 6.25, 4.1g. 

Estimate £500 - £700

A BRAZILIAN ALEXANDRITE AND DIAMOND RING set with an oval cut alexandrite of 1.59 carats between two fancy cut diamonds, inscribed A159 D0602, stamped Pt900, size L1/2 / 6, 7.1g. Accompanied by a facsimile GIA report stating that the alexandrite is B

Estimate £20,000 - £30,000

A YELLOW DIAMOND DRESS RING set with twelve round brilliant cut yellow diamonds in halos of further round brilliant cut yellow diamonds, stamped 750, size M1/2 / 6.5, 7.3g. 

Estimate £500 - £700

A GREEN TOURMALINE AND DIAMOND DRESS RING set with an octagonal step cut green tourmaline of 11.55 carats, accented on each side by trios of round brilliant cut diamonds, inscribed D0.61 11.55, stamped K14, size K / 5.25, 12.2g. 

Estimate £1,500 - £2,500

AN ITALIAN CHALCEDONY AND DIAMOND FLOWER RING in 18ct yellow gold, set with yellow chalcedony carved to depict a flower set with a round brilliant cut diamond, the shoulders set with further diamonds, Italian assay marks, stamped 750, size M / 6.25,

Estimate £400 - £600

AN ANTIQUE DIAMOND CLOVER RING, 19TH CENTURY AND LATER in yellow gold, designed as a clover set with old cut diamonds, on a later gold band, band with R Ltd maker's mark, full British hallmarks for 18 carat gold Sheffield 2019, size P1/2 / 8, 3.0g. 

Estimate £400 - £600

A CARVED TSAVORITE GARNET AND DIAMOND FLOWER RING set with a carved tsavorite garnet of 4.57 carats, the petals set with single cut diamonds, stamped 14K, size O / 7.25, 5.8g.

Estimate £600 - £800

AN ONYX RING / PENDANT in hexagonal design set on both sides with polished onyx, stamped 18K, 2.3cm, size K1/2 / 5.5, 4.0g.

Estimate £400 - £600

TWO DIAMOND HALF ETERNITY RINGS comprising a half eternity ring in 18ct yellow gold, set with a row of round brilliant cut diamonds, JDT maker's mark, full British hallmarks for Birmingham 1998, size O1/2 / 7.5, 3.6g, together with a diamond half ete

Estimate £400 - £600

A PERIDOT AND DIAMOND DRESS RING set with a round cut peridot of approximately 7.06 carats, the stylised gallery and band set with round brilliant cut diamonds, stamped 18K, size L / 5.75, 5.0g. 

Estimate £1,000 - £1,500

DIOR, A DIAMOND DIORAMOUR RING in 18ct yellow gold, designed as the French word for yes 'oui', accented by a round brilliant cut diamond, signed Dior and numbered, French assay marks, stamped AU750, size J1/2 / 5, 1.7g. 

Estimate £350 - £550

AN AUSTRIAN EMERALD AND DIAMOND THREE STONE RING in 18ct white gold, set with an octagonal step cut emerald of approximately 0.53 carats, accented on each side by a trillion cut diamond totalling 0.3-0.4 carats, the band with a brushed satin finish,

Estimate £1,500 - £2,500

AN AQUAMARINE AND DIAMOND DRESS RING set with an octagonal step cut aquamarine of approximately 16.56 carats, accented on each side by a row of round brilliant cut diamonds, inscribed 16.56 D0.28, stamped Pt900, size L1/2 / 6, 16.3g. 

Estimate £2,500 - £3,500

CARTIER, A DIAMOND JENTON SAUVAGE RING in 18ct white gold, the circular domed face pave set throughout with round brilliant cut diamonds all totalling 3.17 carats, inscribed 3.173, signed Cartier and numbered, French assay marks, size J1/2 / 5, 21.5g

Estimate £10,000 - £15,000

A YELLOW SAPPHIRE AND DIAMOND DRESS RING set with an oval cut yellow sapphire of approximately 5.20 carats, the shoulders set with round brilliant cut diamonds totalling 0.6-0.7 carats, no assay marks, size L1/2 / 6, 3.3g. 

Estimate £3,000 - £5,000

A PINK TOURMALINE AND DIAMOND DRESS RING set with an octagonal step cut pink tourmaline of approximately 12.57 carats, the stepped shoulders set with round brilliant cut diamonds, no assay marks, size M1/2 / 6.5, 8.0g. 

Estimate £2,500 - £3,500

A TURQUOISE DIAMOND DRESS RING set with a round cabochon turquoise, the spiral border set with round cut diamonds totalling 1.47 carats, inscribed D1.47, stamped 18K, size P / 7.75, 16.9g. 

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND THREE STONE RING in platinum, set with an octagonal step cut emerald of approximately 1.61 carats between two old cut diamonds, the diamonds both totalling 0.5-0.6 carats, partial British hallmarks, size M / 6.25, 4.5g.

Estimate £1,500 - £2,500

AN ONYX INTAGLIO SIGNET RING set with an onyx intaglio carved to depict a family crest, stamped 750, size G1/2 / 3.5, 9.2g. 

Estimate £600 - £800

A PINK ZIRCON RING AND A PINK TOPAZ RING one ring set with an oval cut pink zircon, stamped 9ct, size O1/2 / 7.5, 2.5g, together with a pink topaz solitaire ring, stamped 15ct, size R / 8.5, 3.0g. 

Estimate £500 - £700

NO RESERVE - A DIAMOND SNAKE RING designed as a coiled snake set with single cut diamonds, GFAB maker's marks, stamped 750, size M / 6.25, 1.6g. 

Estimate £150 - £250

CARTIER, A DIAMOND DRESS RING in 18ct white gold, the undulating ring pave set to one half with round brilliant cut diamonds, the diamonds all totalling 4.8-5.0 carats, signed Cartier and numbered, French assay marks, size J1/2 / 5, 16.5g. 

Estimate £12,000 - £16,000

A DIAMOND HALF ETERNITY RING set to one half with a row of baguette cut diamonds, stamped PT950, size L / 5.75, 4.9g.

Estimate £400 - £600

AN AMETHYST AND DIAMOND RING AND A PEARL AND DIAMOND RING one ring set with a round cut amethyst in a border of single cut diamonds, no assay marks, size R1/2 / 9, 7.9g, together with a pink pearl and diamond ring, no assay marks, size L1/2 / 6, 4.1g

Estimate £300 - £500

A RUBY AND DIAMOND RING set with a cushion shaped cabochon ruby of approximately 1.80 carats in borders of rose cut diamonds, accented by triangular cabochon rubies, stamped 925 and 585, size N / 6.75, 4.7g. 

Estimate £500 - £700

DAVID WEBB, A DIAMOND BASTILLE RING the hammered band terminating at each end with a gold stud, accented by borders of round brilliant cut diamonds, signed David Webb and numbered, stamped 18K 900PT, size K1/2 / 5.5, 10.3g. 

Estimate £2,500 - £3,500

AN INDIAN DIAMOND AND ENAMEL DRESS RING set with a cluster of polki cut diamonds, the reverse decorated with green, red and white enamel in a foliate design, the band decorated throughout with a pattern of navy blue enamel, no assay marks, sizing ban

Estimate £700 - £900

GUBELIN, AN EMERALD AND DIAMOND BOMBE RING set with a cluster of round cut emeralds in a border of round brilliant cut diamonds, Gubelin maker's mark, stamped 750 SWSS, size J / 4.75, 7.9g. 

Estimate £3,000 - £5,000

AN ORANGE AND YELLOW SAPPHIRE FULL ETERNITY RING set all around with a row of princess cut orange and yellow sapphires, the sapphires totalling 4.0-4.5 carats, stamped 14K, size N / 6.75, 3.7g. 

Estimate £300 - £500

A MOONSTONE RING set with a marquise cabochon moonstone, stamped B14K, size K / 5.25, 3.0g. 

Estimate £300 - £500

A YELLOW DIAMOND DRESS RING the pear shaped ring set with a cluster of round brilliant cut yellow diamonds in a border of round brilliant cut white diamonds, inscribed d1.09ct, stamped 585, size M1/2 / 6.5, 3.7g. 

Estimate £1,000 - £1,500

A RUBY AND DIAMOND RING set with a cushion cut ruby of 0.83 carats, accented by two rows of round brilliant cut diamonds, inscribed R0.83 D0.26, stamped Pt900, size M1/2 / 6.5, 4.9g. 

Estimate £800 - £1,200

AN ART DECO SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut sapphire of approximately 1.44 carats, accented by a cluster of transitional cut diamonds, stamped 18CT, size I / 4.25, 2.5g. 

Estimate £1,000 - £1,500

A GREY PEARL AND DIAMOND DRESS RING set with a pearl of 16.0mm, the shoulders accented by trios of round brilliant cut diamonds, inscribed 0.30, stamped Pt900, size L / 5.75, 11.5g. 

Estimate £1,000 - £1,500

A BLUE TOPAZ AND DIAMOND RING the circular face set with seven rose cut London blue topaz, accented by round brilliant cut diamonds, stamped 750 925, Italian assay marks, size M1/2 / 6.5, 11.1g. 

Estimate £1,000 - £1,500

A SHELL FEATHER CAMEO AND DIAMOND RING set with a shell cameo carved to depict a feather, accented by a border of round cut diamonds, stamped 14K, size L1/2 / 6, 7.9g.

Estimate £300 - £500

A DIAMOND DRESS RING in 18ct yellow and white gold, the square face set with nine round brilliant cut diamonds, on a watch bracelet style band, partial British hallmarks, size I / 4.25, 8.5g. 

Estimate £600 - £800

TWO CROSSOVER RINGS comprising a stylised crossover ring pave set with single cut diamonds, no assay marks, size D1/2 / 2, 5.6g, together with a sapphire and diamond ring in a stylised crossover design, no assay marks, size E1/2 / 2.5, 4.2g.

Estimate £600 - £800

AN ITALIAN EMERALD, RUBY, SAPPHIRE AND DIAMOND FLOWER RING in 18ct yellow gold, set with a carre cut diamond in a cluster of oval cut blue and yellow sapphires, emerald and ruby, accented by two rows of round brilliant cut diamonds, Italian assay mar

Estimate £700 - £900

A SAPPHIRE AND DIAMOND RING set with two pear cut diamonds totalling 1.4-1.6 carats within borders of round brilliant cut diamonds, further diamonds set to the shoulders, the diamonds totalling 0.5-0.6 carats, stamped 750, size M1/2 / 6.5, 4.1g. 

Estimate £800 - £1,200

A DIAMOND RING set with a round brilliant cut diamond of 0.48 carats, accented by scrolls set with further diamonds, inscribed 0.86ct, stamped 14K 585, size N / 6.75, 3.7g. Accompanied by a gemmological report stating the diamond of 0.48 carats is F

Estimate £600 - £800

A DIAMOND AND OBSIDIAN SNOWFLAKE RING the body carved from a piece of snowflake obsidian, with an applied snowflake motif set with diamonds, stamped 14K, size L / 5.75, 5.1g.

Estimate £700 - £900

A TURQUOISE, SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cabochon turquoise in a cluster of oval cut sapphires and round brilliant cut diamonds, the sapphires totalling 3.8-4.0 carats, stamped 14K, size N / 6.75, 10.0g. 

Estimate £1,500 - £2,500

A SAPPHIRE WISHBONE RING set with marquise cut blue sapphires and round cut white sapphires, stamped 14K, size I / 4.25, 5.8g. 

Estimate £300 - £500

A RUBY AND DIAMOND RING set with rows of round cut rubies and round brilliant cut diamonds, partially obscured British hallmarks, size E1/2 / 2.5, 6.1g. 

Estimate £400 - £600

A STAR SAPPHIRE AND DIAMOND THREE STONE RING set with an oval cabochon star sapphire of 2.38 carats, accented on each side by a trillion cut diamond, inscribed S2.38 D0.322, stamped Pt900, size L / 5.75, 5.3g. 

Estimate £500 - £700

A TANZANITE AND YELLOW DIAMOND CLUSTER RING set with a round cut tanzanite of approximately 1.00 carat in a cluster of round brilliant cut diamonds, inscribed D.36ct, stamped 14K 585, size N / 6.75, 3.8g. 

Estimate £600 - £800

AN EMERALD NAVETTE RING the navette face set with round cut emeralds, stamped 18K, size M / 6.25, 4.0g. 

Estimate £700 - £900

AN ANTIQUE VICTORIAN RUBY AND DIAMOND THREE STONE RING in 18ct yellow gold, set with an oval cut ruby of approximately 0.59 carats, accented on each side by an old cut diamond, A&S maker's mark, partial British hallmarks, size P / 7.75, 3.3g. 

Estimate £600 - £800

A PEARL AND DIAMOND CLUSTER RING AND AN ANTIQUE GARNET SOLITAIRE RING one ring set with a pearl in a cluster of rose cut diamonds, full British hallmarks for 9 carat gold, Birmingham 1970, size P / 7.75, 2.3g, together with an antique garnet solitair

Estimate £350 - £450

NO RESERVE - AN ANTIQUE VICTORIAN DIAMOND HEART RING in 22ct yellow gold, designed as a heart, set with three replacement round brilliant cut diamonds, partially obscured full British hallmarks, size N1/2 / 7, 2.0g. 

Estimate £200 - £300

AN EMERALD AND DIAMOND RING set with an oval cut emerald of approximately 0.90 carats within a border of round brilliant cut diamonds, the bifurcated shoulders set with further diamonds, stamped RP 14K, size M / 6.25, 3.1g. 

Estimate £700 - £900

A DIAMOND FULL ETERNITY RING in platinum, set all around with a row of baguette cut diamonds, partial British hallmarks, size J1/2 / 5, 6.3g. 

Estimate £700 - £900

A VINTAGE SAPPHIRE AND DIAMOND FIVE STONE RING in 18ct yellow gold, set with a row of five graduating oval cut sapphires totalling 2.5-2.7 carats, accented by round cut diamonds, full British hallmarks for London 1967, size M / 6.25, 6.6g. 

Estimate £600 - £800

NO RESERVE - A VINTAGE PEARL DRESS RING designed as a stylised spray set with pearls, on an expandable band, stamped 14K, size Q / 8.25 to size U / 10.25, 8.2g. 

Estimate £300 - £500

A PINK SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of approximately 1.21 carats accented by round brilliant cut diamonds, inscribed 1.216 D0.68, stamped Pt900, size M / 6.25, 5.2g. 

Estimate £1,000 - £1,500

A TSAVORITE GARNET AND DIAMOND RING set with an oval cut tsavorite garnet of approximately 1.03 carats, accented by round brilliant cut diamonds, inscribed 1.03 D0.41, stamped Pt900, size J / 4.75, 6.6g.

Estimate £800 - £1,200

A PURPLE STAR SAPPHIRE AND DIAMOND RING set with a round cabochon purple star sapphire of approximately 14.30 carats, the shoulders set with baguette cut diamonds, stamped 10% IRID PLAT, size N / 6.75, 20.1g. 

Estimate £3,000 - £5,000

A PARAIBA TOURMALINE AND DIAMOND CLUSTER RING set with an oval cut paraiba tourmaline in a cluster of round brilliant cut diamonds, inscribed 0.07 0.11, stamped K18WG, size N / 6.75, 2.2g. 

Estimate £500 - £700

AN EMERALD AND DIAMOND BALLERINA RING set with an octagonal step cut emerald of 3.40 carats in an undulating border of tapered baguette cut diamonds, inscribed E3.40, stamped PT900, size L1/2 / 6, 13.0g. 

Estimate £4,000 - £6,000

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 £1,000 - £1,500