A FINE ART DECO CORAL, ONYX AND DIAMOND DRESS RING set with a polished coral accented by rose cut diamonds, the shoulders set with a row of calibre cut onyx accented by further rose cut diamonds, no assay marks, size K1/2 / 5.5, 7.0g. 

Estimate £2,000 - £3,000

A VINTAGE GREEN TOURMALINE AND DIAMOND RING in 18ct white gold, set with an octagonal step cut green tourmaline of 7.67 carats, in a border or round brilliant cut and single cut diamonds, stamped 750, size O / 7.25, 6.9g.

Estimate £2,500 - £3,500

A 1.79 CARAT SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of 1.79 carats, partial British hallmarks, size K / 5.25, 4.4g. 

Estimate £1,000 - £1,500

A VERY FINE COLOMBIAN EMERALD AND DIAMOND RING set with an octagonal step cut emerald of 2.20 carats in a border of old cut diamonds, no assay marks, size O1/2 / 7.5, 4.4g. Accompanied by a gemmological report stating that the emerald is of Colombian

Estimate £15,000 - £20,000

GUBELIN, A FINE IMPERIAL TOPAZ AND DIAMOND RING set with a cushion cut imperial topaz of 19.68 carats, accented by round brilliant cut diamonds, Gubelin maker's mark, stamped 750, size K / 5.25, 10.5g.

Estimate £10,000 - £15,000

AN ANTIQUE GEORGIAN ENAMEL MOURNING BAND RING, LONDON 1825 in 18ct yellow gold, the band decorated all around with black and white enamel, with raised gold lettering 'Fanny Suzanna Durrant', engraved to the inside 'Obt 1 Septr 1825 At 24', British ha

Estimate £1,000 - £1,500

TIFFANY & CO., A DIAMOND LOCK RING designed as a stylised padlock set with a row of round brilliant cut diamonds, inscribed d0.19, signed Tiffany & Co., stamped Au750, size V1/2 / 11, 6.0g. Accompanied by a Tiffany & Co. jewellery box. Current retail

Estimate £1,000 - £1,500

AN IMPORTANT 6.00 CARAT THREE STONE DIAMOND RING set with three old cut diamonds weighing approximately 3.14 carats, 1.35 carats and 1.45 carats, the shoulders set with single cut diamonds, the diamonds all totalling approximately 6.00 carats, no ass

Estimate £40,000 - £60,000

A FINE DIAMOND AND RUBY TARGET RING set with a principal old European cut diamond of 1.13 carats in concentric borders of calibre cut rubies and old cut diamonds, with openwork decoration to the gallery, the diamonds all totalling approximately 1.4-1

Estimate £4,000 - £6,000

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a cushion cut blue sapphire of approximately 5.04 carats, accented in each shoulder by a round brilliant cut diamond, stamped 18K, size S / 9.25, 10.7g.

Estimate £3,000 - £5,000

A VERY FINE BLACK OPAL AND DIAMOND DRESS RING set with a polished rounded triangular shaped black opal of approximately 4.87 carats, displaying bright flashes of red, blue, green, yellow and violet, accented by single cut diamonds to the bifurcated s

Estimate £8,000 - £12,000

CARTIER,  A DIAMOND JUSTE UN CLOU RING in 18ct rose gold, designed as a bent nail, accented by round brilliant cut diamonds, signed Cartier and numbered, Swiss assay marks, Cartier size 50, size L / 5.75, 6.8g. 

Estimate £2,500 - £3,500

KUTCHINSKY, A GOLD BAND RING, 1966 in 18ct yellow gold, the wide band with a stylised textured design, signed Kutchinsky, full British hallmarks for London 1966, size P / 7.75, 10.0g. 

Estimate £700 - £900

L'CISE, A MODERNIST FIRE AGATE AND DIAMOND RING in 18ct yellow gold, the abstract mount set with an oval cabochon fire agate, accented by round brilliant cut diamonds, signed l'CISE, stamped 18CT, size Q / 8, 19.4g. 

Estimate £1,200 - £1,600

CARTIER, A PAVED DIAMOND TRINITY RING in 18ct tricolour gold, comprising three interlocking tricolour bands, pave set throughout with round brilliant cut diamonds, signed Cartier and numbered, stamped 750, Cartier size 52, size L1/2 / 6, 11.0g. Accom

Estimate £12,000 - £15,000

CARTIER, A PAVED DIAMOND LOVE RING in 18ct yellow gold, the band pave set throughout with round brilliant cut diamonds and punctuated by screw motifs, Cartier size 55, size N1/2 / 7, 4.8g. Accompanied by a copy of the original Cartier purchase receip

Estimate £3,000 - £5,000

BULGARI, A LAPIS LAZULI TRONCHETTO RING in 18ct yellow gold, set with a polished lapis lazuli, signed Bvlgari made in Italy, full British hallmarks for London 2000, stamped 750, size L / 5.75, 9.2g. 

Estimate £700 - £900

AN EMERALD AND DIAMOND THREE STONE RING set with an octagonal step cut emerald of 1.88 carats between two round brilliant cut diamonds, the diamonds both totalling approximately 1.60 carats, no assay marks, size O / 7.25, 3.7g.

Estimate £6,000 - £8,000

AN ANTIQUE STUART CRYSTAL MOURNING RING in yellow gold, the circular face set with a faceted piece of rock crystal, covering initials on a woven ground, no assay marks, size N / 6.75, 3.2g.

Estimate £1,000 - £1,500

A FINE ANTIQUE BURMA NO HEAT RUBY AND DIAMOND DRESS RING in yellow gold, set with a row of five graduated cushion cut rubies all totalling approximately 2.40 carats, accented by rose cut diamonds, with scrolls to the shoulders, no assay marks, size P

Estimate £5,000 - £7,000

A DIAMOND RING in 22 carat yellow gold, the hammered gold ring set with an old cut diamond of 1.16 carats, full British hallmarks for Birmingham 1851, size L1/2 / 6, 10.4g. This ring has been remodelled from an antique Victorian ring by Gaetano Chiav

Estimate £4,000 - £6,000

AN UNHEATED RUBY AND DIAMOND RING in yellow gold, set with a row of five graduated cushion cut rubies all totalling 4.77 carats, accented by old cut and single cut diamonds, no assay marks, size P / 7.5, 5.9g. Accompanied by a gemmological report sta

Estimate £6,000 - £8,000

AN ANTIQUE TRIPLE INTAGLIO RING, EARLY 19TH CENTURY in yellow gold, set with a trio of graduated oval hardstones carved to depict a scarab beetle, a lion, and the rape of Proserpina, no assay marks, size S / 9, 4.5g.

Estimate £3,000 - £5,000

A 6.53 CARAT CEYLON NO HEAT PADPARADSCHA SAPPHIRE DRESS RING in yellow gold, set with a mixed oval cut padparadscha sapphire of 6.53 carats, with pierced decoration to the gallery, no assay marks, size O / 7, 3.1g. Accompanied by a gemmological repor

Estimate £15,000 - £20,000

A FINE BLACK OPAL AND DIAMOND RING in platinum, set with an oval cabochon black opal of 7.65 carats, the mount accented by round brilliant cut, single cut and baguette cut diamonds, stamped Pt, size M / 6.25, 8.2g.

Estimate £25,000 - £35,000

A SAPPHIRE AND DIAMOND THREE STONE GYPSY RING set with an oval cabochon blue sapphire accented by two round brilliant cut diamonds, stamped 750, size L1/2 / 6, 7.5g.

Estimate £600 - £800

AN EMERALD AND DIAMOND DRESS RING set with an octagonal step cut emerald of 6.91 carats, accented by stepped shoulders set with baguette and princess cut diamonds, no assay marks, size O1/2 / 7.5, 6.1g.

Estimate £15,000 - £20,000

AN ANTIQUE BURMA NO HEAT RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut ruby of 1.63 carats in a cluster of old cut diamonds, stamped 18, size N / 6.75, 5.2g. 

Estimate £4,000 - £6,000

A FINE AQUAMARINE AND DIAMOND RING set with an octagonal step cut aquamarine of approximately 17.59 carats, accented by old cut and single cut diamonds, with pierced scrolling designs to the gallery, no assay marks, size M1/2 / 6.5, 9.5g.

Estimate £4,000 - £6,000

VAN CLEEF & ARPELS, A DIAMOND RING in 18ct yellow gold, the tapering ring accented by a round brilliant cut diamond of 0.46 carats, inscribed 0.48ct, signed VCA and numbered, RB French maker's mark, French assay mark, stamped 18KT, size J1/2 / 5, 9.5

Estimate £2,500 - £3,500

TIFFANY & CO., A DIAMOND FULL ETERNITY RING in platinum, set all around with a row of round brilliant cut diamonds, the diamonds all totalling 3.0-3.2 carats, signed Tiffany & Co., stamped PT950, partial British hallmarks, size P / 7.75, 6.1g. 

Estimate £6,000 - £8,000

JANESICH, A 4.26 CARAT BURMA NO HEAT SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with a cushion cut sapphire of 4.26 carats, accented on each side by a trillion cut diamond, signed Janesich, French assay marks, size M / 6.25, 4.8g. Accompa

Estimate £20,000 - £30,000

AN ANTIQUE DIAMOND SWEETHEART RING, CIRCA 1800 in yellow gold and silver, set with a pear shaped rose cut diamond, accented by a coronet set with further rose cut diamonds, to a stylised gold band formed of scrolls and rope twist motifs, no assay mar

Estimate £3,000 - £5,000

AN ANTIQUE UNHEATED RUBY AND DIAMOND RING in 18ct yellow gold, set with a trio of cushion cut rubies all totalling 4.04 carats, accented by trios of old cut diamonds, stamped 18ct, size L1/2 / 6, 6.0g. Accompanied by a gemmological report stating tha

Estimate £4,000 - £6,000

CARTIER, A LAKARDA PANTHERE RING in 18ct white gold, designed as a coiled panther, set with pear cut emerald eyes and an onyx nose, signed Cartier and numbered, French assay marks, maker's mark, size N1/2 / 7, 24.3g. 

Estimate £6,000 - £8,000

AN EXQUISITE COLOMBIAN EMERALD AND DIAMOND RING set with a square step cut emerald of 3.31 carats within a two row border of single cut diamonds, the gallery to the reverse of the head of the ring with fine pierced foliate designs, further diamonds s

Estimate £30,000 - £50,000

MONTURE CARTIER, A DIAMOND RING set to the centre with an old cut diamond of approximately 1.50 carats in a border of baguette cut diamonds, signed Mtd Cartier, no assay marks, size T / 9.5, 13.2g. 

Estimate £5,000 - £7,000

ANDREW GRIMA, A GREEN TOURMALINE AND DIAMOND RING in 18ct white gold, set with a fancy cut green tourmaline, accented by single cut diamonds, full British hallmarks for 1978, sizing beads, size L1/2 / 6, 7.6g. 

Estimate £2,500 - £3,000

BULGARI, A DIAMOND SERPENTI VIPER RING in 18ct rose gold, designed as a coiled snake set throughout with round brilliant cut diamonds, signed Bulgari and numbered, Italian assay marks, stamped Au750, Bulgari size XXL, size adjustable, 12.4g. Accompan

Estimate £7,000 - £9,000

A VINTAGE DIAMOND DRESS RING, CIRCA 1970 in yellow gold and white gold, the head of the ring of faceted geometric design formed of a ropetwist frame and panels of round brilliant cut diamonds, the diamonds all totalling 2.4-2.6 carats, no assay marks

Estimate £2,500 - £3,500

ELIZABETH GAGE, A GREEN ENAMEL LIBRA ZODIAC RING in 18ct yellow gold, the tapering band comprising the Libra scales, accented by sun and moon motifs, relieved in green enamel, signed GAGE, EG maker's mark, full British hallmarks for 1993, size P / 7.

Estimate £2,000 - £3,000

A 3.19 CARAT SOLITAIRE DIAMOND RING set with a round brilliant cut diamond of approximately 3.19 carats, accented on each side by a baguette cut diamond, partial British hallmarks for London 1992, size M / 6.25, 5.5g. 

Estimate £20,000 - £30,000

A FINE BLUE ZIRCON SOLITAIRE DRESS RING set with a round brilliant cut zircon of approximately 15.92 carats, no assay marks, size P1/2 / 7.75, 5.6g.

Estimate £1,500 - £2,000

A RUBY AND DIAMOND THREE STONE RING set with a cushion cut ruby of 1.55 carats between two old cut diamonds, the diamonds totalling approximately 0.94 carats, no assay marks, size M / 6.25, 2.7g.

Estimate £2,500 - £3,500

A RARE ANTIQUE FRENCH SPESSARTINE GARNET AND EMERALD SNAKE RING, 19TH CENTURY in 18ct yellow gold, designed as a snake coiled around on itself, the head set with an oval cut spessartine garnet and the eyes with emeralds, French assay mark, size Q / 8

Estimate £800 - £1,200

A FINE NATURAL SALTWATER PEARL AND DIAMOND RING in 14ct white gold, set with a pearl of 10.0mm accented by single cut diamonds, stamped 585, size O / 7.25, 3.8g. Accompanied by a gemmological report stating that the pearl is of natural saltwater orig

Estimate £10,000 - £15,000

CARTIER, A DIAMOND BAND RING in 18ct rose gold, the band pave set with round brilliant cut diamonds all totalling 1.8-2.0 carats, signed Cartier and numbered, stamped 750, Austrian assay marks, Cartier size 53, size M / 6.25, 12.1g. Accompanied by Ca

Estimate £4,000 - £6,000

A RUBY AND DIAMOND THREE STONE GYPSY RING set with an oval cabochon ruby accented by two round brilliant cut diamonds, stamped 585, size M1/2 / 6.5, 6.8g.

Estimate £600 - £800

AN UNHEATED SAPPHIRE AND DIAMOND RING set with a round cut blue sapphire of 1.95 carats in a border of old cut diamonds, no assay marks, size N / 6.5, 4.1g. Accompanied by a gemmological report stating that the sapphire of Madagascan origin, with no

Estimate £2,000 - £3,000

VAN CLEEF & ARPELS, A DIAMOND SWIRL RING, 1980's in 18ct white gold, the swirling face set with a row of round brilliant cut diamonds, signed VCA and numbered, French assay marks, size L1/2 / 6, 10.3g. 

Estimate £5,000 - £7,000

A SAPPHIRE AND DIAMOND TOI ET MOI RING designed as a stylised band around a central octagonal step cut blue sapphire and round brilliant cut diamond, with rose cut diamonds set to the shoulders, no assay marks, size P / 7.75, 4.3g.

Estimate £1,500 - £2,000

AN ANTIQUE EDWARDIAN DIAMOND DOUBLE SNAKE RING, 1908 in 18ct yellow gold, designed as two snakes coiled around each other, their heads and eyes set with old cut and rose cut diamonds, full British hallmarks for London 1908, size W / 11, 8.6g.

Estimate £1,000 - £1,500

AN ANTIQUE VICTORIAN DIAMOND GYPSY RING, 1891 in 18ct yellow gold, set with an old mine cut diamond of approximately 0.51 carats, full British hallmarks for Birmingham 1891, size S / 9, 8.3g.

Estimate £1,000 - £1,500

A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut blue sapphire of 3.00 carats in a border of round brilliant cut diamonds, stamped Plat, size L1/2 / 6, 4.1g. Accompanied by a gemmological report stating that the sapphire is o

Estimate £3,000 - £5,000

TIFFANY & CO., A DIAMOND ETOILE RING designed as two crossover bands set with staggered round brilliant cut diamonds, signed Tiffany & Co., stamped 750 PT950, size K / 5.25, 6.3g. 

Estimate £700 - £900

A DIAMOND, YELLOW DIAMOND, RUBY, AND SAPPHIRE GIARDINETTO RING designed to depict a pot of flowers, the vase relieved with a fancy shaped white diamond, accented by marquise cut ruby, yellow diamond, green sapphire and blue sapphire, with further rou

Estimate £1,500 - £2,000

A VINTAGE SAPPHIRE AND DIAMOND THREE STONE GYPSY RING the tapering band set with a round cut blue sapphire and two old cut diamonds, no assay marks, size P / 7.75, 7.2g.

Estimate £1,000 - £1,500

A VINTAGE FIVE STONE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a row of five oval cut sapphires accented by round cut diamonds, the sapphires all totalling approximately 2.70 carats, full British hallmarks, M1/2 / 6.5, 6.6g.

Estimate £600 - £800