AN ANTIQUE VICTORIAN DIAMOND AND ENAMEL RING, CIRCA 1857-1863 in 18ct yellow gold, set with an old cut diamond, the band relieved in blue enamel, AM maker's mark, partially obscured British hallmarks, size M1/2 / 6.5, 2.7g. 

Estimate £500 - £700

A FINE ALEXANDRITE AND DIAMOND RING in 18ct white gold, set with a pear cut alexandrite of approximately 2.50 carats, the shoulders set with round brilliant cut diamonds, partial British hallmarks, size U / 10, 8.3g. Accompanied by two gemmological r

Estimate £10,000 - £15,000

AN AQUAMARINE AND DIAMOND DRESS RING set with an oval cut aquamarine of approximately 6.90 carats, accented by scrolling shoulders set with round cut diamonds, stamped 750, size K1/2 / 5.5, 6.2g.

Estimate £1,200 - £1,600

AN ANTIQUE DIAMOND AND ENAMEL RING in yellow gold and platinum, set with three old cut diamonds totalling 0.8-0.9 carats, accented by blue and white enamel, French import marks, size E1/2 / 2.75, 4.7g. 

Estimate £1,800 - £2,200

A 5.12 CARAT UNHEATED RUBY AND DIAMOND RING in 18ct yellow gold, set with a cushion cut ruby of 5.12 carats between two round brilliant cut diamonds, the diamonds both totalling 1.01 carats, partial British hallmarks, size R / 8.5, 5.6g. Accompanied

Estimate £5,000 - £7,000

AN ANTIQUE GOLD SNAKE RING in yellow gold, designed as a coiled snake, no assay marks, size Q / 8.25, 5.5g. 

Estimate £1,200 - £1,600

AN ANTIQUE GLASS CAMEO AND ENAMEL RING in 18ct yellow gold, set with an oval glass cameo moulded to depict the bust of a classical woman wearing a grape wreath, the gallery decorated with black enamel, the shoulders decorated with black and white ena

Estimate £1,500 - £2,500

A MODERNIST AQUAMARINE AND DIAMOND RING, 1974 in 18ct white gold, the abstract band set with an octagonal step cut aquamarine of approximately 2.64 carats, accented on each side by a round brilliant cut diamonds, S&Co maker's mark, full British hallm

Estimate £800 - £1,200

AN IMPORTANT COLOMBIAN EMERALD AND DIAMOND CLUSTER RING set with an octagonal step cut emerald of 3.68 carats in a cluster of round brilliant and tapered baguette cut diamonds totalling 3.8-4.4 carats, stamped 18K, size I1/2 / 4.5, 14.2g. Accompanied

Estimate £25,000 - £35,000

AN ART DECO DIAMOND AND ONYX DRESS RING comprising polished onyx set with an old cut diamond of approximately 1.27 carats, the shoulders set with trios of round cut diamonds, no assay marks, size M1/2 / 6.5, 2.8g. 

Estimate £4,000 - £6,000

A SAPPHIRE AND DIAMOND DRESS RING set with a pear cut sapphire of approximately 4.60 carats accented by a cluster of round brilliant cut diamonds, the shoulders set with pear cut diamonds accented by further round brilliant cut diamonds, no assay mar

Estimate £8,000 - £12,000

AN ANTIQUE KUNZITE, SAPPHIRE AND DIAMOND RING, EARLY 20TH CENTURY in yellow gold and silver, set with an oval cut kunzite of approximately 4.32 carats, the shoulders accented by rose cut diamonds and fancy cut sapphires, no assay marks, size L1/2 / 6

Estimate £800 - £1,200

A CEYLON NO HEAT COLOUR CHANGE SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut sapphire of 7.99 carats in a cluster of round brilliant cut diamonds, stamped 18K, size M / 6.25, 7.7g. Accompanied by a facsimile GIA report stating that the sapph

Estimate £10,000 - £15,000

AN ART DECO BURMA NO HEAT RUBY AND DIAMOND RING set with a cabochon ruby of approximately 3.10 carats in a border of old cut diamonds, the shoulders set with further diamonds, no assay marks, size Q / 8, 5.0g. Accompanied by a facsimile gemmological

Estimate £6,000 - £8,000

A RUBY AND DIAMOND BALLERINA RING / PENDANT set with a cushion cut ruby of approximately 2.0 carats, within an undulating border of tapered baguette cut diamonds totalling 2.2-2.5 carats, stamped 18K, ring size O1/2 / 7.5, pendant 2.2cm, 8.2g. 

Estimate £5,000 - £7,000

A FINE TSAVORITE GARNET AND DIAMOND DRESS RING set with a trillion cut tsavorite garnet of approximately 4.10 carats, the scrolling band set with round brilliant cut diamonds totalling 1.5-1.8 carats, stamped 750 18K, size N1/2 / 7, 13.7g. 

Estimate £7,000 - £9,000

AN ANTIQUE AGATE ST GEORGE AND THE DRAGON INTAGLIO RING in yellow gold, set with a brown agate intaglio carved to depict St. George on the back of a horse, slaying the dragon, French import marks, size J / 4.75, 5.8g.

Estimate £550 - £650

A SAPPHIRE AND DIAMOND DRESS RING set with an octagonal step cut sapphire of approximately 1.58 carats, accented by a row of baguette cut diamonds and pave set round brilliant cut diamonds, stamped 750, size M1/2 / 6.5, 8.6g.

Estimate £3,000 - £5,000

BOUCHERON, A DIAMOND QUATRE CLASSIQUE LARGE RING in 18ct rose, yellow and white gold, comprising four layers including a fluted yellow gold band, a white gold diamond set eternity band, a brown PVD band and a rose gold band, signed Boucheron and numb

Estimate £1,800 - £2,600

A FINE BRAZILIAN ALEXANDRITE AND DIAMOND CLUSTER RING set with a cushion cut alexandrite of 1.03 carats within a cluster of round brilliant cut diamonds, further diamonds set to the shoulders, inscribed 1.037 0.56, stamped Pt950, size L1/2 / 6, 3.6g.

Estimate £8,000 - £12,000

A FINE 4.24 CARAT COLOMBIAN EMERALD AND DIAMOND THREE STONE  RING set with an octagonal step cut emerald of approximately 4.24 carats, the shoulders set with baguette cut diamonds, inscribed, E4.247 D0.446, stamped Pt900, size K1/2 / 5.5, 6.1g. Accom

Estimate £12,000 - £16,000

A BURMA NO HEAT RUBY AND DIAMOND RING set with an oval cut ruby of 3.98 carats, accented on each side by an oval brilliant cut diamond, the band set with round brilliant cut diamonds, no assay marks, size M1/2 / 6.5, 5.5g. Accompanied by a facsimile

Estimate £15,000 - £20,000

A PLATINUM WEDDING BAND RING of plain design, stamped PLAT, size T / 9.75, 13.4g. 

Estimate £800 - £1,200

AN ANTIQUE RUBY AND DIAMOND CLUSTER RING in yellow gold, set with a round brilliant cut diamond of approximately 0.50 carats, within a double border of round cut rubies and old cut diamonds, on a bifurcated band, no assay marks, size M / 6.25, 2.8g.

Estimate £1,500 - £2,500

AN ANTIQUE VICTORIAN DIAMOND CROSS RING in yellow gold and silver, designed as a cross set with old cut diamonds, no assay marks, size M / 6.25, 2.5g. 

Estimate £600 - £800

DAVID WEBB, A DIAMOND AND ENAMEL MOTIF RING the diamond shaped ring decorated with white enamel, accented by rows of round brilliant cut diamonds, signed David Webb and numbered, stamped 18K 900PT, size L1/2 / 6, 12.1g.

Estimate £2,000 - £3,000

CHANEL, A WHITE CERAMIC ULTRA RING in 18ct white gold, the flexible band set with white ceramic links, signed Chanel and numbered, Chanel maker's mark, Swiss assay marks, stamped Au750, size N1/2 / 7, 10.2g. 

Estimate £800 - £1,200

TIFFANY & CO., A RUBELLITE TOURMALINE AND DIAMOND DRESS RING in platinum, set with a pear cut rubellite tourmaline of approximately 6.15 carats within a border of round brilliant cut diamonds, further diamonds set to the bifurcated shoulders, signed

Estimate £4,000 - £6,000

AN ART DECO SAPPHIRE AND DIAMOND TARGET RING set with a round cut sapphire of approximately 0.80 carats within a border of old cut diamonds and calibre cut sapphires, no assay marks, size K1/2 / 5.5, 2.3g. 

Estimate £600 - £800

A FINE SOLITAIRE DIAMOND RING set with an emerald cut diamond of approximately 1.54 carats, the shoulders set with fancy cut diamonds, no assay marks, size O1/2 / 7.5, 3.1g. 

Estimate £8,000 - £12,000

AN ANTIQUE THREE STONE DIAMOND RING in yellow gold and silver, set with three rose cut diamonds, no assay marks, size P / 7.75, 5.2g. 

Estimate £5,000 - £7,000

AN ANTIQUE GEORGIAN DIAMOND AND ENAMEL URN RING in yellow gold, designed as an urn set with rose cut diamonds, relieved in blue enamel, no assay marks, size P / 7.75, 4.4g. 

Estimate £2,500 - £3,500

AN ANTIQUE VICTORIAN FIVE STONE RING, 1879 in 18ct yellow gold, set with a row of five old cut diamonds, full British hallmarks for London 1879, size N1/2 / 7, 3.0g. 

Estimate £600 - £800

A VINTAGE RUBY AND DIAMOND RING set with a round cut ruby of approximately 0.44 carats, accented on each side by a round brilliant cut diamond, the scrolling shoulders set with single cut diamonds, stamped 585, size Q / 8.25, 4.6g. 

Estimate £1,000 - £1,500

AN ANTIQUE GOLD FEDE RING in yellow gold, designed as a pair of clasped hands, the band accented by scrolling motifs, no assay marks, size N / 6.75, 5.0g. 

Estimate £2,000 - £3,000

AN ANTIQUE GEORGIAN PORTRAIT MINIATURE RING in yellow gold, set with a Georgian portrait miniature of a gentleman, on seven rows of trace chain, no assay marks, size V / 10.5, 10.4g. 

Estimate £700 - £900

A DIAMOND HALF ETERNITY RING the band set with a row of alternating princess cut and baguette cut diamonds, bordered by rows of round brilliant cut diamonds, the diamonds all totalling 2.07 carats, stamped 750, size N / 6.75, 7.8g.

Estimate £1,800 - £2,400

A FINE GREEN TOURMALINE AND DIAMOND DRESS RING set with an octagonal step cut green tourmaline of approximately 19.08 carats, accented by trios of round brilliant cut diamonds, no assay marks, size L1/2 / 6, 10.0g. 

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 £10,000 - £15,000

A DIAMOND AND SAPPHIRE MARQUISE TARGET RING in platinum, set with a marquise cut diamond of approximately 1.16 carats in a border of calibre cut sapphires, the shoulders set with further diamonds, French import mark, size M1/2 / 6.5, 5.6g.  

Estimate £5,000 - £7,000

CARTIER, A FINE DIAMOND ENGAGEMENT RING comprising a three stone diamond engagement ring, set with a pear cut diamond of approximately 1.10 carats, accented on each side by a tapered baguette cut diamond, signed Cartier and numbered, no assay marks,

Estimate £8,000 - £12,000

A GREEN TOURMALINE AND DIAMOND RING set with an oval cut green tourmaline of 5.84 carats in a stylised border set with round cut diamonds, inscribed 5.84 D0.25, stamped Pt900 K18, size L / 5.75, 12.3g. 

Estimate £1,500 - £2,500

FRED, AN ENAMEL FORCE 10 RING in 18ct yellow gold and steel, the band ring comprising three steel bands, accented by a central section decorated with red, green and mauve enamel, signed Fred Paris, French assay marks, stamped OR ACIER, size I1/2 / 4.

Estimate £1,200 - £1,600

A VINTAGE RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with a round cut ruby of approximately 0.81 carats within a cluster of old cut diamonds, the diamonds totalling 0.4-0.5 carats, stamped 18C, size M1/2 / 6.5, 2.8g. 

Estimate £1,500 - £2,500

AN AQUAMARINE AND DIAMOND DRESS RING set with a pear cut aquamarine of approximately 5.24 carats, in a woven border set with round cut diamonds, the diamonds all totalling 1.36 carats, stamped d1.36ct 750, size N / 6.75, 7.8g.

Estimate £1,800 - £2,600

A MULTICOLOUR SAPPHIRE FULL ETERNITY RING set all around with octagonal step cut blue green, yellow, orange and pink sapphires totalling 7.17 carats, inscribed S7.17, stamped 750, size N / 6.75, 5.0g. 

Estimate £2,500 - £3,500

A FANCY DARK ORANGE-BROWN AND WHITE DIAMOND THREE STONE RING set with a rectangular step cut fancy dark orange-brown diamond of 1.33 carats, accented on each side by an emerald cut white diamond, the white diamonds both totalling 1.65-1.75 carats, st

Estimate £3,000 - £5,000

AN ANTIQUE AGATE CAMEO RING in yellow gold, set with a carved agate cameo depicting the Greek goddess Amphitrite, the band of foliate design, no assay marks, size O1/2 / 7.5, 7.1g. 

Estimate £1,500 - £2,500

AN ANTIQUE VICTORIAN PEARL, DIAMOND AND ENAMEL MOURNING RING in 18ct yellow gold, the navette face set with three old cut diamonds in a border of pearls, glass covered locket panel to the reverse, the shoulders relieved in black enamel, stamped 18CT,

Estimate £800 - £1,200

A ROSE QUARTZ AND DIAMOND FLOWER RING in 18ct rose gold, set with a rose quartz 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, 3.4g. 

Estimate £400 - £600

A SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut sapphire of 1.94 carats, in a border of round cut diamonds, with tapered baguette cut diamonds set to the shoulders, the diamonds all totalling 0.8-0.9 carats, stamped 750, size N / 6.75, 3.3g.

Estimate £1,500 - £2,500

A FINE UNHEATED PADPARADSCHA SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut padparadscha sapphire of 3.05 carats, accented by a cluster of round brilliant cut diamonds, inscribed 3.05 1.08, stamped Pt900, size K / 5.25, 7.6g. Accompanied by a

Estimate £6,000 - £8,000

A FRENCH DIAMOND CLUSTER RING in platinum, set with a transitional cut diamond of approximately 0.67 carats in a border of round cut diamonds, French assay mark, size I1/2 / 4.5, 4.5g. 

Estimate £2,500 - £3,500

A VINTAGE PEARL AND DIAMOND CLUSTER RING in 14ct yellow gold, set with a pearl of 7.1mm within a cluster of 

Estimate £1,200 - £1,600

A DIAMOND RING set with a round brilliant cut diamond of approximately 0.60 carats, the tapering shoulders set with further diamonds, no assay marks, size M / 6.25, 4.6g.  

Estimate £2,500 - £3,500

BULGARI, A TRICOLOUR TUBOGAS RING the gas pipe wrap around ring comprising tricolour gold around a steel core, signed Bvlgari, stamped 750, Italian assay marks, size M1/2 / 6.5, 12.9g.

Estimate £3,500 - £5,500

AN ANTIQUE RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut ruby of approximately 0.86 carats in a cluster of old cut diamonds, the diamonds all totalling 0.4-0.5 carats, R.C.O. maker's mark, stamped 18CT, size P / 7.75, 3.9g

Estimate £1,200 - £1,600

AN ANTIQUE DIAMOND RING in 14ct yellow gold and silver, set with rose cut diamonds, stamped 585, size M / 6.25, 3.4g. 

Estimate £1,200 - £1,600

AN ANTIQUE PEARL AND DIAMOND RING in 18ct yellow gold, set with three pearls, accented by rose cut diamonds, partial British hallmarks, size N / 6.75, 3.4g. 

Estimate £300 - £500

MARINA B, A GEM SET INTERCHANGEABLE RING the plain gold band with interchangeable citrine and pink tourmaline, peridot and blue topaz, and pink tourmaline and blue topaz fittings, signed Marina B and numbered, Italian assay marks, stamped 750, size L

Estimate £1,800 - £2,200

A DIAMOND FIVE STONE DRESS RING set to the front of the band with five round brilliant cut diamonds, the diamonds all totalling 2.5-2.7 carats, stamped 750, size M1/2 / 6.5, 3.0g.

Estimate £2,500 - £3,500

AN ANTIQUE SAPPHIRE AND DIAMOND TOI ET MOI RING in crossover design, set at each end with a round cut sapphire of approximately 1.01 carats and an old cut diamond of approximately 0.50 carats, the shoulders set with rose cut diamonds, no assay marks,

Estimate £800 - £1,200

AN ANTIQUE RUBY AND DIAMOND CLUSTER RING in yellow gold, set with a round cut ruby of approximately 1.09 carats in a cluster of old cut diamonds, no assay marks, size Q / 8.25, 2.4g. 

Estimate £1,200 - £1,600

AN ANTIQUE DIAMOND RING in 18ct yellow gold, set with two rows of old cut diamonds all totalling 0.8-1.0 carat, stamped 18CT, size M / 6.25, 2.8g. 

Estimate £800 - £1,200

AN ANTIQUE PEARL FIVE STONE RING in 18ct yellow gold, set with five half pearls, accented by rose cut diamonds, stamped 18ct size L / 5.75, 3.9g. 

Estimate £500 - £700

AN ANTIQUE SHELL CAMEO RING in yellow gold, set with a shell cameo carved to depict the goddess Fortuna, no assay marks, size P / 7.75, 8.8g. 

Estimate £1,500 - £2,500

A TANZANITE DRESS RING in 18ct white gold, set with a fancy trilliant cut tanzanite of approximately 3.57 carats, full British hallmarks, size O / 7, 7.3g.

Estimate £600 - £800

CARTIER, A C DE CARTIER DIAMOND HEARTS RING, 2001 in 18ct white gold, designed as a series of stylised heart motifs, one accented by round brilliant cut diamonds, signed Cartier 2001 and numbered, stamped 750, size K1/2 / 5.5, 6.7g. 

Estimate £1,800 - £2,600

AN ANTIQUE  BLUE ZIRCON AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a round cut blue zircon of approximately 3.33 carats in a cluster of old cut diamonds, the diamonds totalling 0.5-0.7 carats, stamped 18CT, size P1/2 / 8, 3.9g. 

Estimate £1,200 - £1,600

DE BEERS, A DIAMOND WILDFLOWER FLOWER RING in 18ct white gold, designed as a flower set with round brilliant cut diamonds, signed De Beers and numbered, partial British hallmarks, size M1/2 / 6.5, 4.3g. Accompanied by a De Beers jewellery box. 

Estimate £300 - £500

AN ART DECO SAPPHIRE AND DIAMOND RING in yellow gold, set with three square step cut sapphires, accented by pairs of old cut diamonds, inscribed 19/5/23, no assay marks, size P / 7.75, 2.5g. 

Estimate £800 - £1,200

A VINTAGE SAPPHIRE AND DIAMOND TOI ET MOI RING in 18ct white gold, set at each end with a round cut sapphire of approximately 0.45 carats and a round brilliant cut diamond of approximately 0.50 carats, the shoulders set with single cut diamonds, CG&S

Estimate £1,200 - £1,600

BOUCHERON, A VINTAGE DIAMOND RING in 18ct yellow gold, the tapering fluted ring accented by five round brilliant cut diamonds, signed Boucheron Paris, French import mark, size N1/2 / 7, 12.3g. 

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND THREE STONE RING in 18ct white gold, set with an octagonal step cut emerald of approximately 1.86 carats, accented on each side by a trillion cut diamond, the diamonds totalling 0.7-0.8 carats, H.M maker's mark, full British ha

Estimate £3,000 - £5,000

GUCCI, A DIAMOND G BAND RING in 18ct white gold, comprising a row of G motifs, the centre G set with round brilliant cut diamonds, signed Gucci, Italian assay marks, stamped 750, size I1/2 / 4.5, 8.8g. 

Estimate £600 - £800

TIFFANY & CO., A GOLD BAND RING in 18ct yellow gold, comprising a wide band, signed Tiffany & Co., full British hallmarks for London 2000, stamped 750, size S / 9.25, 8.9g. 

Estimate £700 - £900

A DIAMOND DRESS RING the geometric face set with old and single cut diamonds, marked indistinctly, size H1/2 / 4, 2.8g. 

Estimate £600 - £800

A RUBELLITE TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with a round cabochon rubellite tourmaline of approximately 5.74 carats, accented by round brilliant cut diamonds, R&G maker's mark, partial British hallmarks, stamped 750, size N / 6.7

Estimate £700 - £900