AN IMPORTANT 4.39 CARAT DIAMOND RING in platinum, set with an emerald cut diamond of 4.39 carats accented by two tapering baguette cut diamonds, full British hallmarks, size L / 5.75, 5.7g. Accompanied by a gemmological report from the GIA stating th

Estimate £40,000 - £60,000

A 2.61 CARAT INTERNALLY FLAWLESS FANCY VIVID YELLOW DIAMOND RING in platinum and 18ct yellow gold, set with a cut cornered rectangular modified brilliant cut fancy vivid yellow diamond of 2.61 carats, with two trapezoid cut diamonds to each shoulder,

Estimate £25,000 - £35,000

AN ARGYLE FANCY PURPLISH PINK DIAMOND RING in platinum and 18ct white gold, set with a cut fancy purplish pink round brilliant cut diamond of 0.18 carats in a border of round brilliant cut diamonds, further diamonds set to the shoulders, stamped PT95

Estimate £1,000 - £1,500

THIS LOT HAS BEEN WITHDRAWN

Estimate £3,000 - £5,000

THIS LOT HAS BEEN WITHDRAWN

Estimate £600 - £800

THIS LOT HAS BEEN WITHDRAWN

Estimate £2,000 - £3,000

THIS LOT HAS BEEN WITHDRAWN

Estimate £800 - £1,200

THIS LOT HAS BEEN WITHDRAWN

Estimate £2,500 - £3,500

THIS LOT HAS BEEN WITHDRAWN

Estimate £150 - £250

THIS LOT HAS BEEN WITHDRAWN

Estimate £8,000 - £12,000

THIS LOT HAS BEEN WITHDRAWN

Estimate £30,000 - £50,000

NO RESERVE - AN EMERALD, OPAL AND DIAMOND SNAKE RING in yellow gold, designed as a coiled snake, set with oval and pear cut emeralds, cabochon opals and round cut diamonds, with textured scales, no assay marks, size O / 7.25, 3.1g.

Estimate £400 - £600

THIS LOT HAS BEEN WITHDRAWN

Estimate £2,000 - £3,000

THIS LOT HAS BEEN WITHDRAWN

Estimate £2,500 - £3,500

THIS LOT HAS BEEN WITHDRAWN

Estimate £300 - £500

THIS LOT HAS BEEN WITHDRAWN

Estimate £1,500 - £2,500

THIS LOT HAS BEEN WITHDRAWN

Estimate £40 - £60

A FINE RUBELLITE TOURMALINE, DIAMOND AND ONYX RING in white gold, set with a rectangular step cut rubellite tourmaline of approximately 38.6 carats, the basket set with round cut diamonds, the tapering shoulders set with a graduated row of baguette c

Estimate £15,000 - £20,000

A FINE OPAL AND DIAMOND SWEETHEART RING in yellow gold and silver, designed to depict a heart surmounted by a crown / coronet, the heart set with an opal in a border of old cut diamonds, the coronet further set with old cut diamonds, no assay marks,

Estimate £1,500 - £2,500

NO RESERVE - A SOLITAIRE DIAMOND GYPSY RING in 18ct yellow gold, set with an old cut diamond of approximately 0.90 carats, stamped 18CT, size R / 8.5, 7.3g.

Estimate £300 - £500

AN ANTIQUE RUBY AND DIAMOND RING in yellow gold and silver, set with an oval cut ruby of 0.6-0.7 carats, to a cluster of old cut diamonds totalling 0.8-0.9 carats, no assay marks, size O1/2 / 7.5, 4.6g.

Estimate £1,000 - £1,500

A PINK TOURMALINE AND DIAMOND RING in platinum, set with a mixed oval cut pink tourmaline of 3.46 carats in a cluster of round brilliant cut diamonds, the shoulders pave set with further diamonds, stamped PT900, size M1/2 / 6.5, 7.3g.

Estimate £1,000 - £1,500

AN AQUAMARINE AND DIAMOND COCKTAIL RING in white gold, set with an octagonal cut aquamarine of approximately 103.02 carats, accented by rows of round brilliant cut diamonds, no assay marks, size O / 7.25, 41.3g.

Estimate £6,000 - £8,000

A TURQUOISE AND DIAMOND BOMBE RING in 18ct white gold, the bombe face set with pear and oval cabochon turquoise accented by round cut diamonds, stamped 18K, size O / 7.25, 14.3g.

Estimate £2,000 - £3,000

A DIAMOND FULL ETERNITY RING in 14ct white gold, set with a all around with a row of square step cut diamonds all totalling 2.25 carats, stamped 585, size L1/2 / 6, 4.5g.

Estimate £1,000 - £1,500

A DIAMOND BAND RING in 18ct white gold, designed as a series of interlocking curb links, half of which are pave set with round brilliant cut diamonds, stamped 750, M / 6.25, 7.6g.

Estimate £1,000 - £1,500

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct white gold, set with an octagonal scissor cut sapphire of 3.56 carats, the band set with pear and round brilliant cut diamonds, stamped 18ct, size N1/2 / 7, 3.2g. Accompanied by a gemmological report

Estimate £2,000 - £3,000

CARTIER, A RUBY AND DIAMOND MAILLON PANTHERE RING in 18ct yellow gold, set to the centre with an oval cut ruby on five rows of maillon links accented by round brilliant cut diamonds, the diamonds all totalling 1.8-2.0 carats, signed Cartier and numbe

Estimate £6,000 - £8,000

A MUGHAL CARVED EMERALD AND DIAMOND RING in 22ct yellow gold, the hexagonal face set with a Mughal carved emerald inlaid with an old cut diamond, stamped 22ct, size M / 6.25, 18.1g.

Estimate £6,000 - £8,000

A FINE EMERALD AND DIAMOND DRESS RING in 18ct yellow gold, set with a cabochon emerald of 19.09 carats accented by trios of round brilliant cut diamonds, inscribed 19.09 D 0.94, stamped 18K, size K1/2 / 5.5, 27.7g.

Estimate £20,000 - £30,000

A TURQUOISE, LAPIS LAZULI AND DIAMOND CROSSOVER RING in 14ct yellow gold, one half of the band set with a domed cabochon turquoise in a border of round brilliant cut diamonds, accented by cabochon lapis lazuli, the other half set with a domed cabocho

Estimate £3,000 - £5,000

MAUBOUSSIN, A VINTAGE DIAMOND CROSS OVER DRESS RING in 18ct yellow gold, pave set to one side of a stylised band with round brilliant cut diamonds, signed MAUBOUSSIN PARIS, stamped 750, size K1/2 / 5.5, 12.8g.

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, designed as a bow set with a row of step cut sapphires and tapered baguette cut diamonds, inscribed 0.28 0.81, stamped 18K, size L1/2 / 6, 6.0g.

Estimate £1,500 - £2,500

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with four rows of carre cut sapphires and four rows of tapered baguette cut diamonds, accented by a row of round brilliant cut diamonds, the sapphires totalling 2.45 carats, the diamonds tota

Estimate £2,000 - £3,000

A PERIDOT RING in yellow gold, set with an octagonal cut peridot, no assay marks, size O1/2 / 7.5, 12.2g.

Estimate £2,500 - £3,500

PIAGET, A CORAL AND ONYX RING in 18ct yellow gold, set with alternating pieces of polished coral and polished onyx, signed PIAGET, stamped 750, size M / 6.25, 11.5g.

Estimate £1,000 - £1,500

A PINK TOURMALINE AND DIAMOND COCKTAIL RING in 18ct yellow gold, set with a cabochon pink tourmaline of 29.63 carats, accented by scrolling rows of round brilliant cut diamonds all totalling 3.5-3.5 carats, stamped 18K, size O1/2 / 7.5, 29.6g.

Estimate £5,000 - £7,000

A VINTAGE JADEITE JADE, PINK TOURMALINE AND DIAMOND DRESS RING in yellow gold, comprising a polished jadeite jade sphere set with cabochon pink tourmalines, accented on each side by a row of round brilliant cut diamonds, on a fluted band, marked indi

Estimate £1,500 - £2,500

A DIAMOND ETERNITY RING in yellow gold, the band three quarter set with three rows of round brilliant and emerald cut diamonds all totalling 5.559 carats, stamped 750, inscribed 5.559, size M1/2 / 6.5, 8.9g.

Estimate £3,000 - £5,000

AN ANTIQUE RUBY, SAPPHIRE AND HARDSTONE BLACKAMOOR CAMEO RING in high carat yellow gold, set with an oval carved agate blackamoor cameo depicting a bust, within a border cushion cut rubies and sapphires, accented by twisted wirework decoration, with

Estimate £1,500 - £2,500

AN ANTIQUE DENDRITIC AGATE AND GARNET RING in yellow gold, set with an oval cabochon cut piece of dendritic agate, within a border of step cut garnets, no assay marks, size P / 7.5, 2.8g.

Estimate £500 - £700

AN ANTIQUE OPAL AND DIAMOND RING in 18ct yellow gold, set with two cabochon cut opals, accented by old mine cut diamonds, to stylised shoulders, stamped 18CT, size O / 7.25, 2.6g.

Estimate £200 - £300

AN ANTIQUE BELT RING in 18ct yellow gold, designed as a belt, decorated in foliate design, full British hallmarks, size L1/2 / 6, 9.4g.

Estimate £400 - £600

AN ANTIQUE PEARL AND ENAMEL MOURNING LOCKET RING, 19TH CENTURY in yellow gold, set with five graduated pearls, accented by black enamel scrolled detail, the inside of the band with a circular glass locket panel, no assay marks, J1/2 / 5, 2.3g.

Estimate £300 - £500

AN ANTIQUE VICTORIAN BLACK ENAMEL AND DIAMOND MOURNING RING in 18ct yellow gold, with a black enamel and rose cut diamond set forget me not flower to black enamel shoulders stylised in a scroll design, with hairwork encased in a locket to the reverse

Estimate £600 - £800

AN ANTIQUE OPAL AND DIAMOND RING in 18ct yellow gold and silver, the oval face set with a cabochon opal on a ground of rose cut diamonds, French import marks, size N1/2 / 7, 5.0g.

Estimate £1,500 - £2,500

A DIAMOND SNAKE RING designed as a coiled snake, set with a pear cut diamond of 0.54 carats to the head and rose cut diamond eyes, stamped 750, size M / 6, 7.2g.

Estimate £1,500 - £2,500

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with an oval cut sapphire, in a halo of old mine cut diamonds, to stylised shoulders, stamped with maker's mark and 18CT & PLAT, size N1/2 / 7, 6.7g.

Estimate £500 - £700

AN ART DECO DIAMOND DRESS RING in platinum, the geometric face set with two old cut diamonds of approximately 1.15 and 1.04 carats, accented by rose cut diamonds, French import mark, size Q / 8.25, 5g.

Estimate £8,000 - £12,000

AN ANTIQUE VICTORIAN BLUISH GREEN DIAMOND RING, 1862 in 18ct yellow gold, set with an old cut blue diamond of 0.70 carats, full British hallmarks for Birmingham 1862, size N / 6.5, 4.7g. Accompanied by gemmological report stating that the diamond is

Estimate £4,000 - £6,000

AN AQUAMARINE, TURQUOISE AND SAPPHIRE COCKTAIL RING in yellow gold, set with an octagonal mixed cut aquamarine of approximately 25.00 carats, the shoulders set with trios of cabochon turquoise and round cut sapphires, no assay marks, size R1/2 / 9, 1

Estimate £4,000 - £6,000

A BLACK OPAL, DIAMOND, SAPPHIRE AND TSAVORITE GARNET COCKTAIL RING in 18ct white gold, set with an oval cabochon black opal of 6.82 carats, in a border of round brilliant cut diamonds, pear and marquise cut sapphires and marquise cut tsavorite garnet

Estimate £1,200 - £1,800

A BLUE TOPAZ, RUBY AND DIAMOND DRESS RING in 18ct white gold, set with a cluster of illusion set step cut rubies accented by rows of baguette cut diamonds and carved blue topaz, inscribed D0.46 R 1.40, stamped 18K, size L1/2 / 6, 13.7g.

Estimate £2,000 - £3,000

A TURQUOISE AND DIAMOND DRESS RING in 18ct yellow gold, set with a cabochon turquoise in a border of round brilliant cut diamonds, accented by twisted wirework, stamped 750, size H1/2 / 4, 15.2g.

Estimate £3,000 - £5,000

A TURQUOISE CLUSTER RING in yellow gold, the domed face set with a cluster of cabochon turquoise accented by twisted gold wirework, no assay marks, size E1/2 / 2.75, 5.7g.

Estimate £500 - £700

A CITRINE, AMETHYST AND DIAMOND DRESS RING in 14ct yellow gold, set to the centre with a round cut citrine in a cluster of oval cut citrine and round cut amethysts, the shoulders accented by a row of round cut diamonds, stamped 14K 585, size J1/2 / 5

Estimate £500 - £700

A FANCY GREENISH YELLOW DIAMOND RING in platinum, set with a cushion cut fancy greenish yellow diamond of 2.41 carats, the stylised shoulders set with round brilliant cut diamonds, stamped PLAT, size M / 6.25, 5.1g. Accompanied by a facsimile report

Estimate £8,000 - £12,000

A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut blue sapphire of 14.80 carats, within a border of round brilliant cut diamonds, the diamonds all totalling 1.50-1.80 carats, no assay marks, size O / 7, 8.7g. Accompanied by a ge

Estimate £35,000 - £45,000

A SOLITAIRE DIAMOND RING in platinum, set with an old European brilliant cut diamond of 1.80 carats, between stylised shoulders further set with diamonds, stamped Plat, size K / 5.25, 3.7g.

Estimate £3,000 - £5,000

A DIAMOND AND SAPPHIRE DRESS RING in 18ct white gold, set with a round brilliant cut diamond of approximately 0.42 carats in a border of step cut sapphires and round brilliant cut diamonds, the shoulders set with calibre cut sapphires, stamped 18k, s

Estimate £1,000 - £1,500

AN AQUAMARINE AND DIAMOND RING set with a cushion cut aquamarine of approximately 5.19 carats accented by rows of round brilliant cut diamonds, no assay marks, size Q / 8.25, 6.1g.

Estimate £1,200 - £1,600

AN EMERALD AND DIAMOND RING in platinum, set with an octagonal step cut emerald of 1.96 carats, the stylised band set with marquise and round brilliant cut diamonds, stamped PLAT, size O / 7.25, 5.3g. Accompanied by a gemmological report stating that

Estimate £3,000 - £5,000

A SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct white gold, set with a princess cut diamond of 2.00 carats, the band half set with round brilliant cut diamonds, stamped 18K, size J / 4.75, 2.9g. Accompanied by a facsimile gemmological report stating the

Estimate £10,000 - £15,000

AN AQUAMARINE AND DIAMOND COCKTAIL RING in white gold, set with an octagonal cut aquamarine of approximately 11.57 carats, accented by two triangular step cut aquamarines, in a border of round brilliant cut diamonds, no assay marks, size N / 6.75, 9.

Estimate £3,000 - £5,000

A DIAMOND CLUSTER RING in 18ct white gold, set with a cluster of round brilliant cut diamonds all totalling 2.5-3.0 carats, stamped 18ct, size Q1/2 / 8.5, 4.8g.

Estimate £2,500 - £3,500

CARTIER, A DIAMOND LOVE RING in 18ct white gold, the wide band with a single screw motif pave set with round brilliant cut diamonds, signed Cartier and numbered, stamped 750, size R / 8.75, 13.6g.

Estimate £1,500 - £2,500

A VINTAGE DIAMOND, SAPPHIRE AND TURQUOISE BOMBE RING in yellow gold, the domed face set to the centre with a round brilliant cut diamond in a cluster of cabochon sapphires, accented throughout with cabochon turquoise, no assay marks, size N / 6.75, 9

Estimate £2,500 - £3,500

AN ANTIQUE AMETHYST AND PEARL RING in rose gold, set to the centre with an oval cut amethyst in a concentric border of seed pearls and round cut amethysts, no assay marks, size O / 7.25, 5.1g.

Estimate £300 - £500

A CORAL, MOTHER OF PEARL AND DIAMOND BOMBE RING in 18ct yellow gold, the domed face set with pieces of polished coral and mother of pearl accented by round cut diamonds, stamped 18k, size L / 5.75, 8.4g.

Estimate £1,500 - £2,000

A DIAMOND DRESS RING in yellow gold, the fluted band set with a row of round brilliant cut diamonds, no assay marks, size M / 6.25, 11.3g.

Estimate £1,500 - £2,000

AN ORANGE SAPPHIRE AND DIAMOND RING in 18ct white and yellow gold, set with a cushion cut orange sapphire of approximately 5.4 carats between two trilliant cut diamonds totalling 0.8-0.9 carats, maker's mark WR, French assay marks, stamped 750, size

Estimate £4,000 - £6,000

LALAOUNIS, A GOLD CROSSOVER RING in 22ct yellow gold, with a hammered gold finish, Lalaounis maker's mark, stamped 22, size M1/2 / 6.5, 9.4g.

Estimate £1,500 - £2,500

A FRENCH BURMA NO HEAT RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold and silver, set to the centre with an oval cut ruby of approximately 1.71 carats, in a cluster of alternating round brilliant and round cut rubies, French assay marks, size H1/2

Estimate £5,000 - £7,000

AN EMERALD DRESS RING in 18ct rose gold, set with an octagonal step cut emerald of approximately 4.30 carats, stamped 18K, size N1/2 / 7, 5.8g.

Estimate £2,000 - £3,000

A CEYLON NO HEAT PINK STAR SAPPHIRE AND DIAMOND RING in 18ct yellow gold and platinum, set with a round cabochon pink sapphire of 5.90 carats, within a stylised band set with single cut diamonds, stamped 18ct, size P / 7.5, 5.5g. Accompanied by a gem

Estimate £4,000 - £6,000

AN UNHEATED TSAVORITE GARNET AND DIAMOND RING in 18ct white gold, set with an octagonal step cut tsavorite garnet of 2.23 carats in a stylised border set with round brilliant cut diamonds, the band set with further diamonds, stamped 18K, size N / 6.7

Estimate £1,000 - £1,500

A DIAMOND FULL ETERNITY RING set with old cut diamonds, no assay marks, the diamonds all totalling 1.7-1.9 carats, 4.5g.

Estimate £500 - £700

AN ANTIQUE GNOSTIC ABRAXAS INTAGLIO RING in 18ct yellow gold, set with a large oval hardstone, reverse carved to depict Abraxas, in a later antique mount, size S / 9, 22.6g.

Estimate £4,000 - £6,000

AN ANTIQUE RUBY AND DIAMOND RING in yellow gold, set with alternating round cut rubies and old cut diamonds, no assay marks, size S / 9.25, 3.3g.

Estimate £300 - £500

AN ANTIQUE EDWARDIAN SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with three oval cut sapphires and four old cut diamonds, full British hallmarks for Birmingham 1904, size P / 7.75, 3.2g.

Estimate £300 - £500

A DIAMOND DRESS RING in 18ct yellow gold, the navette face set throughout with old cut diamonds all totalling 2.4-2.6 carats, full British hallmarks, size N1/2 / 7, 6.9g.

Estimate £1,500 - £2,500

A DIAMOND SOLITAIRE RING in platinum, set with an old European cut diamond of approximately 3.10 carats, the shoulders set with single cut diamonds, stamped Platinum, size P / 7.5, 4.1g.

Estimate £12,000 - £16,000

AN ANTIQUE DIAMOND THREE STONE RING in 18ct yellow gold, set with three single cut diamonds in star motifs, full British hallmarks, size T1/2 / 10, 13.1g.

Estimate £400 - £600

A VINTAGE EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with a square cut emerald surrounded by a border of single cut diamonds, stamped 18CT PLAT, size M / 6.25, 3.9g.

Estimate £500 - £700

AN ANTIQUE DIAMOND AND ENAMEL RING, 19TH CENTURY AND LATER in yellow gold and silver, the octagonal face with an applied foliate motif set with rose cut diamonds, over a green guilloche enamel background, within a border of rose cut diamonds, later s

Estimate £2,000 - £3,000

AN ANTIQUE GEORGIAN DIAMOND GIARDINETTO RING, 18TH CENTURY in yellow gold and silver, set with rose and table cut diamonds, no assay marks, size N1/2 / 7, 3.0g.

Estimate £1,500 - £2,500

AN ART DECO SAPPHIRE AND DIAMOND DRESS RING in platinum, the tapering face set with a cabochon sapphire between two trillion cut diamonds in a border of single and round cut diamonds, the diamonds all totalling 0.9-1.1 carats, the band possibly a lat

Estimate £2,000 - £3,000

A SAPPHIRE AND DIAMOND BOMBE RING in 18ct yellow gold, the domed face set with seven rows of illusion set step cut sapphires, accented by a border of round brilliant cut diamonds, London import marks, size R1/2 / 8.75, 16.7g.

Estimate £4,000 - £6,000

A DIAMOND HALF ETERNITY RING in 18ct white gold, the band half set with seven round brilliant cut diamonds all totalling 2.20 carats, stamped 750, size O / 7.25, 3.0g.

Estimate £1,500 - £2,500

A DIAMOND CLUSTER RING in 18ct yellow gold, set with a cluster of round brilliant cut diamonds all totalling 1.8-2.0 carats, British import marks, size N / 6.5, 4.1g.

Estimate £800 - £1,200

A DIAMOND AND ONYX TARGET RING in 18ct white gold, set to the centre with a round brilliant cut diamond of approximately 1.10 carats within a concentric border of polished onyx and single cut diamonds, the band pave set with further diamonds, stamped

Estimate £2,500 - £3,500

AN UNHEATED RUBY AND DIAMOND THREE STONE RING in 18ct white gold, set with an oval mixed cut ruby of 1.16 carats, between two round brilliant cut diamonds totalling 0.8-0.9 carats, partial British hallmarks, size M1/2 / 6.5, 3.7g. Accompanied by a ge

Estimate £2,500 - £3,500

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with a central oval mixed cut sapphire of 4.50 carats in a cluster of marquise and tapered baguette cut diamonds, the diamonds all totalling 1.5-1.7 carats, stamped PLAT and 950, size K / 5.

Estimate £6,000 - £8,000

A PINK SAPPHIRE AND DIAMOND CLUSTER RING in platinum and 18ct yellow gold, set with an oval cut pink sapphire of 1.75 carats in a cluster of old and round cut diamonds, further diamonds accenting the band, stamped 18CT&PT, size M / 6.25, 3.5g.

Estimate £800 - £1,200

A CEYLON NO HEAT SAPPHIRE AND DIAMOND DRESS RING in 14ct white gold, set with a cabochon sapphire of 12.00 carats accented by rows of old cut diamonds, stamped 585, size Q1/2 / 8.25, 7.8g. Accompanied by a gemmological report stating the sapphire is

Estimate £4,000 - £6,000

A FRENCH EMERALD AND DIAMOND RING in 18ct yellow gold and platinum, set with a Mughal carved emerald depicting a flower, accented by round brilliant cut diamonds, French maker's mark, French assay marks, size L1/2 / 6, 7.3g.

Estimate £1,500 - £2,500

CARTIER, A VINTAGE DIAMOND RING in yellow gold, set with three rows of round brilliant cut diamonds, signed Cartier Paris, no assay marks, size M / 6.25, 16.4g.

Estimate £5,000 - £7,000

A VINTAGE CORAL AND DIAMOND RING in 18ct yellow gold, the twisted gold band set with round cut diamonds between pieces of polished coral, stamped 750, size K / 5.25, 5.7g.

Estimate £1,000 - £1,500

A MUGHAL CARVED PINK SPINEL RING in yellow gold, set with a Mughal carved pink spinel of approximately 25.00 carats in the form of a flower, no assay marks, size M1/2 / 6.5, 10.5g.

Estimate £4,000 - £6,000

CARRERA Y CARRERA, A DIAMOND AFRODITA RING in 18ct yellow gold, the spiralling face set with a central round brilliant cut diamond of 0.11 carats, CYC maker's mark and numbered, stamped 750, size N1/2 / 7, 18.7g.

Estimate £800 - £1,200

A COLOMBIAN EMERALD AND DIAMOND DRESS RING in 18ct yellow gold, set with a pear cut emerald of 1.87 carats in a pear shaped border set with round brilliant cut diamonds, accented by further diamonds, stamped 18K, size M / 6.25, 8.9g. Accompanied by a

Estimate £8,000 - £12,000

A MUGHAL CARVED RUBY AND DIAMOND RING in 18ct white gold, set with a Mughal carved ruby in the form of a flower, between two pear cut diamonds both totalling 0.93 carats, stamped 750, inscribed D0.93, size O / 7.25, 8.0g.

Estimate £6,000 - £8,000

A KUNZITE, TANZANITE AND DIAMOND RING in 18ct rose gold, set with a cushion cut kunzite of approximately 4.60 carats between two cushion cut tanzanites, within a border of round brilliant cut diamonds, the stylised band set with further diamonds, sta

Estimate £1,000 - £1,500

A TANZANITE, PINK TOURMALINE AND DIAMOND DRESS RING set with a cushion shaped tanzanite of 11.28 carats, accented by marquise cut pink tourmalines and round brilliant cut diamonds, no assay marks, size N / 6.75, 10.7g. Accompanied by a gemmological r

Estimate £2,500 - £3,500

A PARAIBA TOURMALINE AND DIAMOND HALF ETERNITY RING in 18ct white gold, set with three rows of round cut Paraiba tourmalines accented by two rows of round brilliant cut diamonds, stamped 18K, size M1/2 / 6.5, 5.2g.

Estimate £2,000 - £3,000

A VINTAGE CORAL AND DIAMOND DRESS RING in 18ct yellow gold, the central panel set with single cut diamonds, the band set with carved coral, stamped 750, size K / 5.25, 4.9g.

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut emerald of 3.65 carats in a cluster of old cut diamonds, the diamonds all totalling 1.8-2.2 carats, stamped 18ct, size O / 7, 7.4g.

Estimate £3,000 - £5,000

AN UNHEATED RUBY AND DIAMOND RING in 18ct yellow gold, set with an oval cut ruby of 1.42 carats, within a border of old European cut diamonds, stamped 18ct, size M / 6, 2.5g. Accompanied by a gemmological report stating that the ruby is of Thai (Siam

Estimate £2,000 - £3,000

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 0.50 carats, stamped PT950, inscribed 0.50, size M / 6.25, 1.5g.

Estimate £500 - £700

TIFFANY & CO, AN EMERALD AND DIAMOND THREE STONE RING in 18ct yellow gold, with a central oval cut emerald of approximately 0.85 carats between two oval cut diamonds both totalling 0.4-0.5 carats, signed Tiffany & Co, stamped 18K, size M / 6, 2.8g.

Estimate £2,500 - £3,500

AN ANTIQUE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with three oval cut sapphires punctuated by pairs of old cut diamonds, stamped 18, size L1/2 / 6, 3.0g.

Estimate £250 - £350

A RUBY, DIAMOND, ROCK CRYSTAL AND BLACK JADE RING in 18ct white gold, set with a circular Mughul carved ruby in a double border of polished rock crystal and cabochon rubies, accented by marquise cut diamonds, the gallery and shoulders set with black

Estimate £10,000 - £15,000

A RUBY AND DIAMOND DRESS RING in 18ct yellow gold, set with a cabochon ruby in a cluster of round brilliant cut diamonds, the tapering band set with cabochon rubies in a crosshatch pattern, stamped 750, size L1/2 / 6, 14.3g.

Estimate £3,000 - £5,000

A GENTLEMAN'S DIAMOND DRESS RING in 9ct yellow gold, set with a central square cluster of round brilliant cut diamonds, the shank designed as a watch bracelet, stamped 9K, size U1/2 / 10.5, 9.3g.

Estimate £400 - £600

A SAPPHIRE AND DIAMOND CROSSOVER RING set with two clusters of round brilliant cut diamonds and round cut sapphires, the band with twisted wirework detailing, stamped 18K, size K1/2 / 5.5, 8.6g.

Estimate £2,500 - £3,500

DIOR, AN ENAMEL MITZA CLAW RING in 18ct yellow gold, designed as a leopard's paw, the paw decorated with spots of brown enamel, the claws decorated with black enamel, signed Dior and numbered, French assay marks, size N1/2 / 7, 19.5g.

Estimate £1,500 - £2,500

A PINK TOPAZ AND DIAMOND DRESS RING in 18ct yellow gold, set with an oval cut pink topaz of 1.50 carats, accented by round brilliant cut diamonds, stamped 18K, size N1/2 / 7, 12.7g.

Estimate £2,000 - £3,000

VAN CLEEF & ARPELS, A VINTAGE DIAMOND DRESS RING,1960S in 18ct yellow gold, set with a cluster of round brilliant cut diamonds within stylised fluted settings, the diamonds all totalling 2.5-3.0 carats, maker's mark for Andre Vassort, signed VCA and

Estimate £10,000 - £15,000

A SAPPHIRE AND DIAMOND BOMBE RING in 18ct yellow gold, the domed face set with round cut sapphires accented by round brilliant cut diamonds, the sapphires all totalling 5.82 carats, the diamonds all totalling 0.38 carats, inscribed S 5.82 D 0.38, sta

Estimate £2,000 - £3,000

VAN CLEEF & ARPELS, A VINTAGE DIAMOND DRESS RING in platinum, the geometric face set with a central old European cut diamond of approximately 3.10 carats, accented by baguette cut diamonds, signed Van Cleef & Arpels and numbered, French assay marks,

Estimate £60,000 - £80,000

A FINE RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold and white gold, set with an oval cut ruby of 7.05 carats in a cluster of old cut diamonds, the diamonds all totalling 1.3-1.4 carats, stamped 18ct, size N / 6, 8.4g.

Estimate £5,000 - £7,000

A RUBY, SAPPHIRE AND DIAMOND TARGET RING in platinum, set with a cabochon ruby in a border of French cut sapphires, the band set with round brilliant cut diamonds, stamped PLAT, size L1/2 / 6, 4.8g.

Estimate £1,500 - £2,500

A FINE COLOMBIAN EMERALD AND DIAMOND THREE STONE RING set with an octagonal step cut emerald of 2.04 carats between two emerald cut diamonds, the diamonds both totalling 0.9-1.0 carat, no assay marks, size O / 7.25, 4.7g. Accompanied by a gemmologica

Estimate £8,000 - £12,000

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of approximately 5.28 carats, stamped PLAT, size P / 7.5, 6.0g.

Estimate £30,000 - £50,000

A SAPPHIRE AND DIAMOND RING in 18ct white gold, set with an octagonal step cut sapphire of 2.54 carats in a border of round brilliant and baguette cut diamonds, stamped 750, size M / 6.25, 4.7g.

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND DRESS RING set with an oval cut emerald of approximately 1.85 carats in an openwork border set with round brilliant cut diamonds, no assay marks, O1/2 / 7.5, 5.1g.

Estimate £1,200 - £1,800

A RUBY, EMERALD, SAPPHIRE AND DIAMOND RING in white gold, set with a round cut ruby, emerald and sapphire, accented by round and single cut diamonds, no assay marks, size P / 7.75, 3.9g

Estimate £3,000 - £5,000

A DIAMOND BAND RING in 18ct yellow gold, set with a row of princess cut diamonds, French import marks, size K1/2 / 5.5, 8.2g.

Estimate £1,200 - £1,600

A COLOMBIAN EMERALD AND DIAMOND CLUSTER RING in yellow and white gold, set with an octagonal step cut emerald of 1.65 carats in a border of old European cut diamonds totalling 0.7-0.8 carats, no assay marks, size L1/2 / 6, 4.0g. Accompanied by a gemm

Estimate £2,500 - £3,500

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with alternating sections of round cut sapphires and round brilliant cut diamonds, the diamonds all totalling 1.34 carats, the sapphires all totalling 2.25 carats, stamped K18, size M1/2 / 6.

Estimate £2,000 - £3,000

A VINTAGE DIAMOND DRESS RING in yellow and white gold, set with a round brilliant cut diamond of 0.70 carats, to an engraved band with scrolled detailing, no assay marks, size L / 5.75, 10.2g.

Estimate £600 - £800

AN EMERALD FULL ETERNITY RING in 18ct white gold, set all around with a row of octagonal step cut emeralds, stamped 18K, size O / 7.25, 5.6g.

Estimate £2,000 - £3,000

BOUCHERON, A DIAMOND FULL ETERNITY RING in platinum, set with round brilliant cut diamonds, the diamonds all totalling 1.8-2.0 carats, signed Boucheron, French assay marks, size T / 9.75, 4.0g.

Estimate £1,500 - £2,500

A PINK SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a central rose cut diamond in a border of cushion cut pink sapphires and round brilliant cut diamonds, stamped 750, size M / 6.25, 6.5g.

Estimate £4,000 - £6,000

AN ANTIQUE GARNET AND DIAMOND RING, 19TH CENTURY in yellow gold, in scrolling design, set with a rectangular mixed cut garnet accented by four old cut diamonds, no assay marks, size J1/2 / 5, 1.9g.

Estimate £1,500 - £2,500

A SOLITAIRE DIAMOND ENGAGEMENT RING set with an old European cut diamond of 0.70 carats, the stylised shoulders set with rose cut diamonds, no assay marks, J1/2 / 5, 3.0g.

Estimate £600 - £800

A DIAMOND FULL ETERNITY RING set throughout with round brilliant cut diamonds all totalling 1.0-1.2 carats, no assay marks, size O1/2 / 7.5, 3.2g.

Estimate £500 - £700

A DEMANTOID GARNET AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with an oval cut demantoid garnet of 0.66 carats, in a cluster of round brilliant cut diamonds, full British hallmarks, size K1/2 / 5.5, 2.7g.

Estimate £600 - £800

AN ANTIQUE EMERALD AND DIAMOND CLUSTER RING in yellow gold, the centre set with an octagonal cut emerald in a cluster of old cut diamonds, no assay marks, size L / 5.75, 3.6g.

Estimate £1,500 - £2,500

A VINTAGE SAPPHIRE AND DIAMOND RING in yellow gold, set with four single cut diamonds to a border of four calibre cut synthetic sapphires, indistinct assay marks, size N / 6.75, 2.4g.

Estimate £300 - £500

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of approximately 2.70 carats in a split border of round brilliant cut diamonds, to a stylised trifurcated band set with round brilliant cut diamonds, full British

Estimate £10,000 - £15,000

A DIAMOND THREE STONE RING in white gold, set with three round brilliant cut diamonds, the diamonds totalling 3.0-3.1 carats, no assay marks, size N1/2 / 7, 5.0g.

Estimate £10,000 - £15,000

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

A DIAMOND RING in platinum, set with a row of round brilliant and baguette cut diamonds accented by two rows of princess cut diamonds, stamped Pt900, size J1/2 / 5, 12.6g.

Estimate £3,000 - £4,000

AN EMERALD AND DIAMOND RING in 14ct white gold, set with an octagonal step cut emerald of 1.87 carats, the band half set with round brilliant cut diamonds, stamped 14K, size M1/2 / 6.5, 2.9g. Accompanied by a gemmological report stating that the emer

Estimate £2,000 - £3,000

A RUBY AND DIAMOND BOMBE RING in platinum, the domed face set with tapered baguette cut diamonds accented by rows of tapered baguette cut rubies, the diamonds all totalling 1.61 carats, the rubies all totalling 1.08 carats, inscribed D 1.61 R 1.08, s

Estimate £2,000 - £3,000

BULGARI, A B.ZERO 1 RING in 18ct yellow gold, with engraved lettering 'BVLGARI' to the sides, signed Bvlgari and numbered, stamped 750, size K / 5.25, 7.3g.

Estimate £400 - £600

BULGARI, A B.ZERO 1 RING in 18ct yellow gold, with engraved lettering 'BVLGARI' to the sides, signed Bvlgari and numbered, stamped 750, size S1/2 / 9.5, 7.6g.

Estimate £400 - £600

A GREEN TOURMALINE, MORGANITE AND DIAMOND DRESS RING in 18ct rose gold, set with a cushion cut green tourmaline of approximately 4.50 carats between two cushion cut morganites both totalling 3.0-3.5 carats, within a border of round brilliant cut diam

Estimate £1,500 - £2,500

A SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct yellow gold, set with an emerald cut diamond of approximately 4.00 carats surrounded by a halo of round brilliant cut diamonds, the band set with further diamonds, full British hallmarks, size M / 6, 4.3g.

Estimate £12,000 - £16,000

A SAPPHIRE AND DIAMOND BOMBE RING in 18ct yellow gold, the domed face pave set with round brilliant cut diamonds accented by a row of tapered baguette cut sapphires, the diamonds all totalling 3.10 carats, inscribed 3.10 0.47, stamped K18, size M / 6

Estimate £2,000 - £3,000

A BURMA NO HEAT SAPPHIRE RING in white gold, set with an emerald cut sapphire of 1.13 carats, no assay marks, size M1/2 / 6.5, 5.7g. Accompanied by a gemmological report stating the sapphire is of Burmese (Myanmar) origin with no indication of heat t

Estimate £2,500 - £3,500

AN UNHEATED PURPLE SAPPHIRE AND DIAMOND RING in 14ct white gold, set with an oval cut purple sapphire of 1.05 carats in a border of round brilliant cut diamonds, the band half set with three rows of further diamonds, stamped 14K, size N / 6.75, 6.8g.

Estimate £800 - £1,200

A WATERMELON TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with a rectangular step cut watermelon tourmaline of 1.10 carats in a stylised border set with round brilliant cut diamonds, the band set with further diamonds, stamped 750, size N1/2

Estimate £600 - £800

A SAPPHIRE FLOWER RING in 18ct white gold, designed as a flower head, set throughout with round cut blue sapphires, stamped 750, size L1/2 / 6, 16.4g.

Estimate £2,000 - £3,000

TIFFANY & CO, A DIAMOND ETERNITY BAND RING in platinum, the band set with a central row of square step cut diamonds, between rows of single cut diamonds, the diamonds all totalling 3.9-4.2 carats, stamped Tiffany & Co, stamped Irid Plat, size K1/2 /

Estimate £5,000 - £7,000

A DIAMOND BOMBE RING in 18ct white gold, the bombe face set with round brilliant cut diamonds all totalling 3.8-4.0 carats, stamped 750, size M / 6.25, 8.0g.

Estimate £2,000 - £2,500

AN EMERALD AND DIAMOND RING in 18ct white gold, set with an oval cut emerald of 2.85 carats in a border of round brilliant cut diamonds, the band set with further diamonds, stamped 18CT, size N1/2 / 7, 4.3g. Accompanied by a gemmological report stati

Estimate £1,500 - £2,500

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a round brilliant cut diamond of approximately 0.50 carats, stamped 18CT, size N / 6.75, 2.7g.

Estimate £500 - £700

A BURMA NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with an octagonal cut sapphire of 1.26 carats in a border of round brilliant cut diamonds, with further diamonds to the band, stamped PLAT, size N1/2 / 7, 4.4g. With a gemmological verbal ass

Estimate £2,500 - £3,500

A CEYLON SAPPHIRE AND DIAMOND RING in 18ct white gold, set with an oval cut sapphire of 1.31 carats, the band set with round brilliant cut diamonds, stamped 18CT, size N / 6.75, 3.3g. Accompanied by a gemmological report stating that the sapphire is

Estimate £1,500 - £2,500

AN UNHEATED SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval mixed cut sapphire of 2.04 carats in a cluster of tapered baguette cut diamonds, stamped 18K, size S1/2 / 9.5, 5.1g. Accompanied by a gemmological report stating that

Estimate £2,000 - £3,000

A 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.

Estimate £5,000 - £7,000

AN UNHEATED RUBY AND DIAMOND RING in 14ct white gold, set with an oval cut ruby of 0.79 carats, the split band set with round brilliant cut diamonds, stamped 14K, size N1/2 / 7, 4.3g. Accompanied by a gemmological report stating that the ruby is of T

Estimate £1,000 - £1,500

A BURMA NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with an octagonal cut sapphire of 1.71 carats, the band set with round brilliant cut diamonds, stamped PLAT, size N1/2 / 7, 4.5g. With a gemmological verbal assessment stating that the sapphi

Estimate £3,000 - £5,000

A DIAMOND DRESS RING in 18ct white gold, the face pave set with round brilliant cut diamonds all totalling 2.4-2.6 carats, stamped 750, size O1/2 / 7.5, 10.0g.

Estimate £2,000 - £3,000

AN EMERALD AND DIAMOND RING in platinum, set with a cushion cut emerald of 6.08 carats in a border set with round brilliant cut diamonds, the band half set with further diamonds, stamped PLAT, size N1/2 / 7, 7.6g. Accompanied by a gemmological report

Estimate £3,000 - £5,000

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an octagonal step cut sapphire of 2.30 carats in a cluster of old mine cut diamonds all totalling 1.4-1.5 carats, stamped PLAT, size O / 7.25, 6.6g.

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with an octagonal step cut sapphire of 0.84 carats in a double border of round cut diamonds, accented by French cut sapphires, the band set with further diamonds, stamped 18K, size M1/2 / 6.5,

Estimate £1,000 - £1,500

A RUBY AND DIAMOND CLUSTER RING in platinum, set with an oval cut ruby of 2.27 carats in a double border of round brilliant cut diamonds, accented by tapered baguette cut diamonds, stamped Pt900, size L / 5.75, 6.6g.

Estimate £1,000 - £1,500

A CEYLON NO HEAT SAPPHIRE BOMBE RING in 18ct white gold, set with a cushion cut sapphire of approximately 8.79 carats, the bombe face set with round cut blue, violet and green sapphires, French maker's mark, French assay mark, size K1/2 / 5.5, 17.8g.

Estimate £15,000 - £20,000

A SOLITAIRE DIAMOND ENGAGEMENT RING in white gold, set with a round brilliant cut diamond of 1.23 carats, to diamond set shoulders, stamped 18CT, size R1/2 / 9, 3.8g.

Estimate £2,500 - £3,500

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 EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut emerald of 1.45 carats in a cluster of round brilliant cut diamonds, stamped 18K, size L1/2 / 6, 5.6g.

Estimate £4,000 - £6,000

AN AQUAMARINE AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut aquamarine between pairs of triangular step cut aquamarines, accented by a border of round brilliant cut diamonds, stamped 18K, size N / 6.75, 3.3g.

Estimate £400 - £600

A VINTAGE SAPPHIRE AND DIAMOND CLUSTER RING in 18ct gold, set with a round cut sapphire of 0.50 carats in a cluster of round cut diamonds, leading to diamond set shoulders, the diamonds all totalling 0.3-0.5 carats, stamped 18CT, size P1/2 / 8, 3.1g.

Estimate £500 - £700

A BURMA NO HEAT SAPPHIRE RING set with an octagonal cut sapphire of 1.19 carats, no assay marks, size M1/2 / 6.5, 4.0g. Accompanied by a gemmological report stating the sapphire is of Burmese (Myanmar) origin with no indication of heat treatment.

Estimate £2,000 - £3,000

A CEYLON NO HEAT COLOUR CHANGE SAPPHIRE AND DIAMOND RING in 18ct rose gold, set with a cushion cut colour change sapphire of 1.00 carats, in a border of round brilliant cut diamonds, the band half set with further diamonds, Polish assay marks, size O

Estimate £600 - £800

A FANCY BROWN DIAMOND AND WHITE DIAMOND CLUSTER RING in 18ct white gold, set with a fancy oval cut brown diamond of 1.04 carats in a border of round brilliant cut diamonds, all diamonds totalling 1.15 carats, tests as 18ct gold, size N / 6, 3.3g.

Estimate £500 - £700

A SOLITAIRE DIAMOND ENGAGEMENT RING in 18ct white gold, set with a round brilliant cut diamond of 5.05 carats, stamped 750, size O / 7.25, 6.5g.

Estimate £15,000 - £20,000

A DIAMOND BOMBE RING in 18ct yellow gold, set with three rows of baguette cut diamonds accented by rows of round brilliant cut diamonds, the diamonds all totalling 2.8-3.0 carats, stamped 18K, size M / 6.25, 10.4g.

Estimate £3,000 - £5,000

AN UNHEATED COLOUR CHANGE SAPPHIRE AND DIAMOND RING in 14ct rose gold, set with an oval mixed cut sapphire of 1.14 carats in a cluster of tapered baguette and round brilliant cut diamonds, stamped 14K, size O / 7.25, 4.3g. Accompanied by a gemmologic

Estimate £800 - £1,200

A RUBY AND DIAMOND DRESS RING in platinum, set with a cluster of oval cut rubies all totalling 3.23 carats, accented by two rows of baguette cut diamonds all totalling 0.74 carats, inscribed 3.23 D 0.75, stamped Pt900, size L / 5.75, 10.8g.

Estimate £2,500 - £3,500

AN ANTIQUE GEORGIAN DIAMOND GIARDINETTO RING in yellow gold and silver, designed as a basket of flowers, set with old and rose cut diamonds, no assay marks, size Q / 8, 6.4g.

Estimate £1,500 - £2,500

A VINTAGE DIAMOND HORSESHOE RING in 9ct rose gold, designed as a horseshoe set with old cut diamonds, stamped 9CT, size L1/2 / 6, 1.8g.

Estimate £300 - £500

A THREE STONE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with an oval cut sapphire of approximately 1.92 carats between two old cut diamonds both totalling 2.0-2.1 carats, no assay marks, size M1/2 / 6.5, 4.3g.

Estimate £4,000 - £6,000

A PERIDOT AND DIAMOND RING, 19TH CENTURY AND LATER in yellow gold, later converted to a ring, set with an octagonal cut peridot accented by two rose cut diamonds, no assay marks, size M / 6.25, 2.3g.

Estimate £500 - £700

A DIAMOND FULL ETERNITY RING in 18ct yellow gold, set all around with a row of round brilliant cut diamonds totalling 1.8-2.0 carats, stamped K18 750, size P / 8, 2.3g.

Estimate £500 - £700

AN UNHEATED RUBY AND DIAMOND RING in platinum, set with an oval cut ruby of 2.16 carats accented by pairs of round brilliant cut diamonds, with further diamonds set to the band, stamped Pt900, size L / 5.75, 5.9g. Accompanied by a gemmological report

Estimate £5,000 - £7,000

A BURMESE RUBY AND DIAMOND THREE STONE RING in 18ct white gold, set with an oval cut ruby between two old European cut diamonds, stamped 18ct, size M / 6.25, 2.6g. With a gemmological verbal assessment stating that the ruby is of Burmese (Myanmar) or

Estimate £3,000 - £5,000

A VINTAGE DIAMOND TWO STONE RING in platinum, set with two old cut diamonds, with further diamonds to the shoulders, stamped PLATINUM, size O1/2 / 7.5, 3.2g.

Estimate £600 - £800

A DIAMOND AND RUBY DRESS RING in 18ct white gold, set with a round brilliant cut diamond of approximately 0.30 carats in a border of step cut rubies and round brilliant cut diamonds, the shoulders set with calibre cut rubies, stamped 18k, size M1/2 /

Estimate £1,200 - £1,800

A DIAMOND ETERNITY RING in platinum, set throughout with old cut diamonds, no assay marks, size N1/2 / 7, 4.3g.

Estimate £300 - £500

AN EMERALD AND DIAMOND THREE STONE RING in platinum, set with an octagonal step cut emerald of 1.41 carats between two baguette cut diamonds, stamped Pt900, size L1/2 / 6, 4.6g.

Estimate £4,000 - £6,000

AN ANTIQUE CARNELIAN INTAGLIO RING in yellow gold, set with an oval carnelian intaglio carved to depict a man, accented by beaded decoration and gazelles, no assay marks, size Q / 8.25, 8.7g.

Estimate £600 - £800

A RUBY AND DIAMOND THREE STONE RING in platinum and 18ct white gold, set with a central oval cut ruby of 0.64 carats between two round brilliant cut diamonds both totalling 0.64 carats, stamped Platinum and 18CT, size M / 6.25, 3.2g.

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND DRESS RING in white gold, set with a cushion cut sapphire of approximately 1.30 carats in a border of round brilliant cut diamonds, accented by rectangular step cut sapphires, no assay marks, size O / 7.25, 4.3g.

Estimate £2,000 - £3,000