AN ANTIQUE DIAMOND RING in yellow gold, set with two rows of old cut diamonds, accented by small rose cut diamonds, the diamonds all totalling 2.5-3.0 carats, no assay marks, size N / 6.75, 3.1g. 

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of approximately 8.00 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 0.7-0.8 carats, full British hallmarks for London 1999, size

Estimate £2,500 - £3,500

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an octagonal step cut emerald of approximately 1.25 carats in a cluster of round brilliant cut diamonds, partial British hallmarks, stamped 750, size O / 7.25, 5.6g. 

Estimate £800 - £1,200

A DIAMOND BOMBE RING the domed face pave set with round brilliant cut diamonds all totalling 2.5-3.0 carats, stamped 750, size R1/2 / 8.75, 10.9g. 

Estimate £1,000 - £1,500

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut aquamarine of approximately 6.37 carats in a cluster of round brilliant cut diamonds, the diamonds totalling 0.9-1.0 carat, full British hallmarks, stamped 750,

Estimate £1,000 - £1,500

A TANZANITE AND DIAMOND RING set with a mixed cut tanzanite of approximately 3.60 carats, the shoulders set with princess and round brilliant cut diamonds, stamped 18K, size J / 4.75, 5.7g. 

Estimate £600 - £800

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a round brilliant cut diamond of approximately 1.52 carats, stamped 585, size M1/2 / 6.5, 3.2g. Accompanied by a gemmological report stating that the diamond is E colour and SI1 clarity. 

Estimate £3,500 - £4,500

A DIAMOND CLUSTER RING set with an old cut cognac diamond of approximately 2.40 carats in a cluster of further old cut diamonds, no assay marks, size Q1/2 / 8.5, 5.1g. 

Estimate £2,000 - £3,000

MAUBOUSSIN, A BLUE CHALCEDONY AND DIAMOND DRESS RING in 18ct white gold, set with a polished blue chalcedony, with an applied X motif set with round brilliant cut diamonds, signed Mauboussin Paris, French assay marks, stamped 750, size L / 5.75, 12.7

Estimate £1,500 - £2,500

A DIAMOND HALF ETERNITY RING in platinum, set with a row of baguette cut diamonds between rows of round brilliant cut diamonds, the diamonds all totalling approximately 2.10 carats, full British hallmarks, size L / 5.75, 9.5g. 

Estimate £2,000 - £3,000

CARTIER, AN OR ET ACIER RING in 18ct yellow gold and steel, comprising alternating sections of gold and steel wire around a gold band, signed Cartier and numbered, no assay marks, size M / 6.25, 5.9g. 

Estimate £400 - £600

FERRAGAMO, A FIRE OPAL AND DIAMOND FLOWER RING in 18ct yellow gold, set with a round brilliant cut diamond and carved fire opal petals, signed Ferragamo, Italian assay marks, stamped 750, size J1/2 / 5, 4.4g. 

Estimate £500 - £700

A VINTAGE DIAMOND HORSESHOE RING in yellow gold, designed as a horseshoe set with eleven round brilliant cut diamonds, the diamonds all totalling 0.7-0.8 carats, no assay marks, size X / 11.5, 9.5g. 

Estimate £500 - £700

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of approximately 2.41 carats in a cluster of round brilliant cut diamonds, on a bifurcated band, full British hallmarks for Edinburgh 2006, size O / 7.25, 7.3g.

Estimate £600 - £800

AN ANTIQUE FRENCH PEARL AND DIAMOND RING in platinum, set with a pearl of 13.0mm accented by round cut diamonds, the shoulders set with further round cut diamonds, French assay marks, size M1/2 / 6.5, 4.8g. 

Estimate £3,000 - £5,000

A DIAMOND CLUSTER RING the openwork face set with a cluster of old cut diamonds all totalling 2.2-2.4 carats, no assay marks, size O1/2 / 7.5, 4.0g. 

Estimate £500 - £700

A VINTAGE CORAL RING set with a polished coral of 12.9mm within a twisted rope work border, no assay marks, size N / 6.75, 9.1g. 

Estimate £300 - £500

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut emerald of approximately 1.90 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N1/2 / 7, 6.2g. 

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with an oval cabochon sapphire of approximately 7.01 carats in a cluster of round brilliant cut diamonds, A&B maker's mark, full British hallmarks, size S / 9.25, 16.4g. 

Estimate £800 - £1,200

AN EMERALD AND DIAMOND THREE STONE RING set with a cushion cut emerald, accented on each side by a round brilliant cut diamond, stamped 24K, size M1/2 / 6.5, 6.2g. 

Estimate £600 - £800

A VINTAGE DIAMOND HALF ETERNITY RING in 18ct yellow gold, half set with a row of round brilliant cut diamonds, the diamonds totalling 1.3-1.5 carats, full British hallmarks for London 1977, size Q1/2 / 8.5, 4.5g. 

Estimate £500 - £700

A RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut ruby of approximately 1.60 carats in a cluster of round brilliant cut diamonds, the shoulders set with further diamonds, partial British hallmarks, size N / 6.75, 4.0g. 

Estimate £1,000 - £1,500

A BLUE TOPAZ AND DIAMOND RING in 18ct yellow gold, set with a pear cut blue topaz of approximately 7.95 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 1.3-1.4 carats, full British hallmarks, size L / 5.75, 8.1g. 

Estimate £500 - £700

A RUBY AND DIAMOND RING in 18ct yellow gold, set with an oval cut ruby of approximately 1.81 carats, the bifurcated band set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 5.1g. 

Estimate £1,200 - £1,800

AN ANTIQUE VICTORIAN DIAMOND AND ENAMEL MOURNING RING in 18ct yellow gold, comprising a floral motif set with an old cut diamond and black enamel petals, the ornate band decorated with forget-me-not motifs and further black enamel, inscribed 'Elizabe

Estimate £500 - £700

AN ANTIQUE DIAMOND THREE STONE RING in 18ct yellow gold, set with three old cut diamonds all totalling 0.6-0.7 carats, full British hallmarks for Birmingham 1908, size N / 6.75, 3.3g. 

Estimate £200 - £300

AN ANTIQUE CAT'S EYE CHRYSOBERYL AND DIAMOND CLUSTER RING in yellow gold, set with a round cabochon cat's eye chrysoberyl in a cluster of old cut diamonds, no assay marks, size L1/2 / 6, 2.9g. 

Estimate £500 - £700

AN EMERALD AND DIAMOND THREE STONE RING set with an octagonal step cut emerald of 3.18 carats, accented on each side by a fancy cut diamond, the shoulders set with round cut diamonds, the diamonds totalling 0.64 carats, stamped 18K, size N / 6.75, 3.

Estimate £2,500 - £3,500

AN ANTIQUE EMERALD AND DIAMOND RING in yellow gold, set with three octagonal step cut emeralds accented by pairs of rose cut diamonds, no assay marks, size L / 5.75, 1.5g. 

Estimate £200 - £300

A GOLD SIGNET RING in 18ct yellow and white gold, with a blank white gold seal and stylised shoulders, French import marks, size S1/2 / 9.5, 10.9g. 

Estimate £1,000 - £1,500

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a princess cut diamond of 0.71 carats, the band set with round brilliant cut diamonds, stamped 14K, size L1/2 / 6, 2.7g. Accompanied by a gemmological report stating that the principal diamond is F-G colou

Estimate £400 - £600

A TURQUOISE DRESS RING in 9ct yellow gold, the domed face set with cabochon turquoise, full British hallmarks, size N1/2 / 7, 5.5g. 

Estimate £200 - £300

A PEARL AND DIAMOND DRESS RING set with a pearl of 9.1mm, in a stylised border set with tapered baguette cut diamonds, stamped 10% IRID PLAT, size N / 6.75, 7.7g.

Estimate £4,000 - £6,000

AN EMERALD AND DIAMOND CLUSTER RING in platinum, set with an octagonal set cut emerald of approximately 3.86 carats in a cluster of round brilliant and princess cut diamonds, the shoulders accented by further round brilliant cut diamonds, partial Bri

Estimate £3,000 - £5,000

PIAGET, A DIAMOND RING in a stylised crossover design, set with round brilliant cut diamonds all totalling 2.0-2.2 carats, signed Piaget and numbered, stamped 750, size K1/2 / 5.5, 17.1g. 

Estimate £2,000 - £3,000

AN EMERALD, SAPPHIRE AND DIAMOND CROSSOVER RING set with an octagonal step cut emerald of 1.07 carats and octagonal step cut sapphire of 1.37 carats, accented by round brilliant and baguette cut diamonds, the diamonds totalling 1.04 carats, stamped 7

Estimate £2,000 - £3,000

A DIAMOND DRESS RING set with a marquise cut diamond of approximately 0.50 carats, accented by rows of round brilliant and baguette cut diamonds, stamped 585, size N / 6.75, 9.1g. 

Estimate £400 - £600

AN EMERALD RING in 14ct yellow gold, set with an octagonal step cut emerald, partial British hallmarks, size O / 7.25, 2.6g. 

Estimate £200 - £300

DORIS PANOS, A KUNZITE AND DIAMOND DRESS RING set with a cushion cut kunzite of approximately 19.15 carats accented by rows of round brilliant cut diamonds, the stylised band set with further round brilliant cut diamonds, Doris Panos maker's mark, st

Estimate £1,500 - £2,500

A RUBELLITE TOURMALINE AND DIAMOND RING in 18ct white gold, set with an oval cut rubellite tourmaline of approximately 8.33 carats, the bifurcated band set with round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 6.1g. 

Estimate £1,200 - £1,800

A MULTI GEM DRESS RING pave set with round cut sapphires, blue topaz, peridot and tsavorite garnets, in a border of round brilliant cut diamonds, stamped 750, size M1/2 / 6.5, 20.8g. 

Estimate £2,000 - £3,000

A VINTAGE SAPPHIRE AND DIAMOND BOMBE RING, 1970S designed as a stylised floral cluster, set with an oval cut sapphire of approximately 3.36 carats in a cluster of marquise cut diamonds, accented by further marquise, pear and round brilliant cut diamo

Estimate £5,000 - £7,000

AN ANTIQUE DIAMOND RING in 18ct yellow gold, set with a cluster of old cut diamonds, stamped 18C, size M / 6.25, 3.3g. 

Estimate £250 - £350

A DIAMOND CORONET RING designed as a coronet set with rose cut diamonds, stamped 925, size P / 7.75, 3.6g. 

Estimate £150 - £250

A SAPPHIRE RING in 14ct yellow gold, set with an octagonal step cut sapphire, partial British hallmarks, size Q1/2 / 8.5, 5.0g. 

Estimate £250 - £350

A DIAMOND RING set with a polki cut diamond, no assay marks, size N / 6.75, 1.4g. 

Estimate £80 - £120

AN EMERALD AND DIAMOND DRESS RING set with oval cabochon emeralds accented by round brilliant cut diamonds, stamped 750, size N / 6.75, 16.4g.

Estimate £1,500 - £2,500

A FINE 2.05 CARAT H COLOUR SOLITAIRE DIAMOND RING set with a princess cut diamond of 2.05 carats, stamped PLAT, size J / 4.75, 3.7g. Accompanied by a GIA report stating the diamond is H colour and VS1 clarity. 

Estimate £5,000 - £7,000

AN ART DECO RUBY AND DIAMOND RING set with an oval cabochon ruby of approximately 7.10 carats in a border of single cut diamonds, accented by baguette cut diamonds, no assay marks, size J / 4.75, 6.5g.

Estimate £10,000 - £15,000

AN ANTIQUE DIAMOND NAVETTE RING in 18ct yellow gold, the navette shaped face set with a cluster of old cut diamonds, the diamonds all totalling 1.2-1.4 carats, stamped 750, size M / 6.25, 3.8g. 

Estimate £500 - £700

AN EMERALD AND DIAMOND CLUSTER RING set with a round cabochon emerald of approximately 1.46 carats in a cluster of round brilliant cut diamonds, no assay marks, size K / 5.25, 6.7g. 

Estimate £350 - £550

A RUBY AND DIAMOND BAND RING set with an oval cabochon ruby accented on each side by a round brilliant cut diamond, stamped 18K, size U / 10.25, 6.4g. 

Estimate £300 - £500

AN ITALIAN ENAMEL BAND RING in 18ct yellow gold, the wide band decorated with teal blue enamel, accented by gold rings, Italian assay marks, stamped 750, size O1/2 / 7.5, 18.2g. 

Estimate £1,000 - £1,500

AN F COLOUR SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 0.50 carats, the band accented by two rows of round brilliant cut diamonds, partial British hallmarks, size M / 6.25, 2.9g. Accompanied by a GIA repo

Estimate £400 - £600

A 7.36 CARAT OPAL AND DIAMOND RING in 18ct yellow gold, set with an oval cabochon opal of 7.36 carats, accented by baguette cut diamonds, partial British hallmarks, size P1/2 / 8, 5.6g.

Estimate £800 - £1,200

MAUBOUSSIN, AN AMETHYST AND DIAMOND DRESS RING in 18ct white gold, set with a fancy oval cut amethyst, the shoulders set with sections of round brilliant cut diamonds, signed Mauboussin Paris and numbered, French assay marks, stamped 750, size J1/2 /

Estimate £1,500 - £2,500

MAPPIN AND WEBB, AN EMERALD AND DIAMOND RING in 18ct white gold, set with a round cut emerald in a halo of round brilliant cut diamonds, further diamonds set to the band, inscribed DIA 0.30, signed M&W, partial British hallmarks, stamped 750, size L

Estimate £800 - £1,200

CHIMENTO, AN AMETHYST AND DIAMOND RING in 18ct white gold, set with a round cabochon amethyst, accented by pave set round brilliant cut diamonds, signed Chimento, Italian assay marks, stamped 750, size M1/2 / 6.5, 7.1g. 

Estimate £700 - £900

A PINK SAPPHIRE AND DIAMOND RING set with an oval cut pink sapphire of 0.86 carats in a cluster of round brilliant cut diamonds, each shoulder set with a tapered baguette cut diamond, the diamonds all totalling 0.50 carats, inscribed 0.86 D0.50, stam

Estimate £800 - £1,200

A CORAL, ONYX AND DIAMOND DRESS RING the oval face comprising polished onyx set with an oval cabochon coral, accented by borders of round cut diamonds, the bifurcated band set with further round cut diamonds, no assay marks, size N1/2 / 7, 7.3g.

Estimate £250 - £350

A DIAMOND THREE STONE RING set with three round brilliant cut diamonds in star shaped borders, stamped 18CT, size S / 9.25, 7.7g. 

Estimate £400 - £600

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of approximately 2.56 carats accented by rows of round brilliant cut diamonds, stamped 750, size V1/2 / 11, 15.4g. 

Estimate £800 - £1,200

A GOLDEN MOTHER OF PEARL, DIAMOND AND RUBY BUTTERFLY RING the wings set with golden mother of pearl and accented by round brilliant cut diamonds, the antennae set with round cut rubies, stamped K18, size N1/2 / 7, 7.9g. 

Estimate £800 - £1,200

A 4.41 CARAT COLOUR CHANGE GARNET AND DIAMOND RING in 18ct yellow gold, set with a cushion cut colour change garnet of 4.41 carats in a border of round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 7.4g.

Estimate £1,200 - £1,600

A MODERNIST EMERALD AND DIAMOND RING in 18ct yellow and white gold, set with a rectangular step cut emerald accented by trios of round brilliant cut diamonds, RH&B maker's mark, full British hallmarks for Birmingham 1976, size M / 6.25, 10.3g.

Estimate £450 - £550

A RUBELLITE TOURMALINE AND DIAMOND RING set with a facetted rubellite tourmaline of approximately 20.00 carats in a border of round brilliant cut diamonds, stamped 750, size O / 7.25, 20.5g. 

Estimate £6,000 - £8,000

A VINTAGE TURQUOISE DRESS RING in 18ct yellow gold, set with a cabochon turquoise, stamped 18ct, size J / 4.75, 4.7g. 

Estimate £200 - £300

AN EMERALD BAND RING set with an octagonal step cut emerald, stamped 18Kt, size R / 8.75, 5.8g.

Estimate £250 - £350

AN ANTIQUE EMERALD AND OPAL CLUSTER RING in 9ct yellow gold, set with a cushion cut emerald in a cluster of cabochon opals, partial British hallmarks, size I1/2 / 4.5, 0.9g. 

Estimate £100 - £150

A RETRO REVERSIBLE SAPPHIRE, RUBY AND DIAMOND RING in 14ct rose gold, comprising a reversible section set to one side with rows of square step cut sapphires and single cut diamonds, the other side set with square step cut rubies and single cut diamon

Estimate £800 - £1,200

AN ANTIQUE OPAL RING in yellow gold, set with an oval cabochon opal, no assay marks, size L1/2 / 6, 4.3g. 

Estimate £300 - £500

A SAPPHIRE AND DIAMOND CLUSTER RING in 9ct yellow and white gold, set with an oval cut sapphire of approximately 1.00 carat in a cluster of single cut diamonds, full British hallmarks, size Q / 8.25, 2.7g. 

Estimate £300 - £500

STEPHEN WEBSTER, A DIAMOND DRESS RING the engraved ring set with an open circle of round brilliant cut diamonds, shield shaped motifs set to the shoulders, Stephen Webster maker's mark, stamped 750, size T / 9.75, 20.6g. 

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND DRESS RING set with oval cabochon emerald of 27.75 carats in a border of round brilliant cut diamonds, the diamonds all totalling 1.00 carat, inscribed 27.75 D1.00, stamped Pt900, size L1/2 / 6, 28.0g. 

Estimate £6,000 - £8,000

A D COLOUR SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 0.50 carats, the band accented by further round brilliant cut diamonds, full British hallmarks, size M / 6.25, 3.9g. Accompanied by a GIA report stati

Estimate £400 - £600

A GREEN SYNTHETIC SPINEL RING in yellow gold, set with an oval cut green synthetic spinel, no assay marks, size S1/2 / 9.25, 8.2g. 

Estimate £200 - £300

AN EMERALD AND DIAMOND THREE STONE RING in platinum, set with an octagonal step cut emerald of 2.32 carats, accented on each side by a trapezoid cut diamond, the diamonds both totalling 0.71 carats, full British hallmarks, size M / 6.25, 7.3g. 

Estimate £4,000 - £6,000

A TURQUOISE AND DIAMOND DRESS RING set to the centre with a cabochon cut turquoise in a double border of round brilliant cut diamonds, stamped 14K, N / 6.75, 3.5g. 

Estimate £600 - £800

ATTR. WENDY YUE, A JADEITE JADE, SAPPHIRE AND DIAMOND DRESS RING designed as a phoenix pave set with round cut blue, pink and yellow sapphires, the eye and crest set with round brilliant cut diamonds and round cut tsavorite garnets, accented by a car

Estimate £2,500 - £3,500

ASTLEY CLARKE, A RUTILATED QUARTZ AND COLOURED DIAMOND EMPEROR MOTH RING designed as a pair of moths, set with a marquise shaped rutilated quartz, the wings set with round cut diamonds, and round cut yellow and black diamonds, stamped 925, size N / 6

Estimate £400 - £600

AN AQUAMARINE AND DIAMOND DRESS RING set with an oval cut aquamarine of approximately 4.80 carats in an openwork border set with round and baguette cut diamonds, the diamonds all totalling 0.6-0.7 carats, stamped 925, size O1/2 / 7.5, 7.0g. 

Estimate £350 - £550

A RETRO SYNTHETIC RUBY AND DIAMOND RING in yellow gold, set with three old cut diamonds, the shoulders set with rectangular step cut synthetic rubies, no assay marks, size P / 7.75, 9.4g. 

Estimate £400 - £600

A SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with an oval cut sapphire of approximately 3.55 carats, accented on each side by a round brilliant cut diamond, the diamonds both totalling approximately 0.7-0.8 carats, full British hallmarks,

Estimate £5,000 - £7,000

AN EMERALD AND DIAMOND CLUSTER RING set with an oval cut emerald of approximately 1.96 carats in a cluster of round brilliant and tapered baguette cut diamonds, the diamonds totalling 2.0-2.2 carats, stamped 18KT, size O / 7.25, 8.5g. 

Estimate £1,500 - £2,500

A RUBELLITE TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with a cushion cut rubellite tourmaline of approximately 7.45 carats, the shoulders set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 6.0g. 

Estimate £1,000 - £1,500

AN INDICOLITE TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with an octagonal step cut indicolite tourmaline of approximately 6.74 carats, the openwork gallery set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 11

Estimate £1,500 - £2,500

AN AQUAMARINE, DIAMOND AND SAPPHIRE DRESS RING set with a pear shaped cabochon aquamarine in a cluster of round brilliant cut diamonds, in a stylised border set with round cut blue and pink sapphires, no assay marks, size M / 6.25, 12.6g.

Estimate £800 - £1,200

A YELLOW SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut yellow sapphire of approximately 7.86 carats in a cluster of round brilliant and baguette cut diamonds, stamped 750, size N1/2 / 7, 7.9g. 

Estimate £2,500 - £3,500

CARTIER, A DIAMOND FULL ETERNITY RING in 18ct yellow gold, set all around with a row of carre cut diamonds, the diamonds all totalling approximately 1.00 carat, signed Cartier and numbered, French assay marks, stamped 750, size N1/2 / 7, 5.0g. Accomp

Estimate £4,000 - £6,000

GUBELIN, A DIAMOND DRESS RING in 18ct white gold, the round pierced face set with rows of round brilliant cut diamonds, the diamonds all totalling 0.74 carats, stamped 750, size N / 6.75, 11.7g. 

Estimate £600 - £800

A PINK SAPPHIRE AND COGNAC DIAMOND FLOWER RING designed as a flower set with a cluster of round brilliant cut cognac diamonds, the petals set with round cut pink sapphires of various shades, stamped 750, size M / 6.25, 17.3g. 

Estimate £2,000 - £3,000

A SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut sapphire of approximately 2.63 carats in a cluster of old cut diamonds, the shoulders set with further old cut diamonds, the diamonds all totalling 1.3-1.4 carats, stamped PLAT 18CT, size K /

Estimate £800 - £1,200

A 3.00 CARAT TSAVORITE GARNET AND DIAMOND RING in 18ct yellow gold, set with a cushion cut tsavorite garnet of 3.00 carats, the shoulders set with round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 6.7g.

Estimate £2,500 - £3,500

AN ORANGE SAPPHIRE AND DIAMOND DRESS RING in scalloped design, set with oval and round cut orange sapphires, accented by rows of round brilliant cut cognac diamonds, stamped 18K 750, size N1/2 / 7, 15.8g. 

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND RING the tapering band set with an oval cut emerald in a border of round brilliant cut diamonds, stamped 750, size R1/2 / 9, 8.1g. 

Estimate £500 - £700

A CITRINE AND DIAMOND DRESS RING in 9ct white gold, set with an oval cut citrine of approximately 26.77 carats, the mount set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 10.8g.

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

A DIAMOND DRESS RING the tapering hammered gold band accented by rows of intersecting round brilliant cut diamonds, inscribed D0.30, stamped K18, size L1/2 / 6, 9.7g. 

Estimate £500 - £700

AN OPAL AND DIAMOND RING in 18ct yellow gold, set with an oval cabochon opal in a border of round brilliant cut diamonds, partial British hallmarks, size O / 7.25, 9.0g. 

Estimate £500 - £700

GELLNER, A BAROQUE PEARL AND DIAMOND RING the abstract ring set with a baroque pearl and accented by round brilliant cut blue and white diamonds, signed Gellner, inscribed 0.71ct, stamped 750, size O1/2 / 7.5, 42.4g.

Estimate £2,000 - £3,000

A BLACK OPAL, MULTICOLOUR SAPPHIRE AND DIAMOND DRESS RING set with an oval cabochon black opal of 8.18 carats, within a border of oval cut blue, green, yellow, pink and orange sapphires and round cut diamonds, the sapphires all totalling 2.83 carats,

Estimate £400 - £600

A SYNTHETIC COLOUR SAPPHIRE RING in yellow gold, set with a round mixed cut synthetic colour change sapphire, no assay marks, size S1/2 / 9.25, 10.1g. 

Estimate £400 - £600

A COLOMBIAN EMERALD AND DIAMOND RING set with an octagonal step cut emerald of approximately 6.83 carats, accented by round brilliant and baguette cut diamonds, stamped 18K, size L / 5.75, 7.4g. With a gemmological verbal assessment stating that the

Estimate £3,000 - £5,000

NO RESERVE - A SAPPHIRE AND DIAMOND DRESS RING set with a cluster of marquise cut sapphires, accented by round brilliant cut diamonds, no assay marks, size P1/2 / 8, 7.0g. 

Estimate £300 - £500

AN AQUAMARINE AND DIAMOND CLUSTER RING in platinum, set with a mixed cushion cut aquamarine of approximately 4.20 carats in a cluster of round brilliant cut diamonds, partial British hallmarks, size L / 5.75, 9.2g. 

Estimate £3,000 - £4,000

CARTIER, A DIAMOND SIGNATURE RING in 18ct white gold, designed as the signature 'Cartier', set with round brilliant cut diamonds, signed Cartier and numbered, Italian assay marks, stamped 750, size K1/2 / 5.5, 4.3g. 

Estimate £600 - £800

A PINK OPAL AND DIAMOND RING the stylised ring set with sections of polished pink opal, accented by round brilliant cut diamonds, stamped K18, size L / 5.75, 6.9g. 

Estimate £600 - £800

A GARNET ETERNITY RING set all around with a row of round cabochon cut garnets, stamped 18K, size N / 6.75, 1.7g. 

Estimate £150 - £250

A RUBY AND DIAMOND RING in 18ct yellow gold, set with an oval cut ruby of approximately 1.71 carats, the bifurcated band set with round brilliant cut diamonds, partial British hallmarks, size N / 6.75, 7.5g.

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND RING / PENDANT set with a cluster of variously cut emeralds in a halo of round cut diamonds, the shoulders accented by further round cut diamonds, the ring face articulated for the ring to be used as a pendant, stamped 18K750,

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with an oval cut sapphire of approximately 1.98 carats, accented by two half moon cut diamonds both totalling 0.57 carats, full British hallmarks, size M1/2 / 6.5, 5.4g. 

Estimate £4,000 - £6,000

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut sapphire of approximately 1.58 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N / 6.75, 5.4g. 

Estimate £2,500 - £3,500

A GREEN TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with a mixed cut green tourmaline of approximately 5.80 carats, the shoulders set with round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 6.7g. 

Estimate £800 - £1,200

A COLOMBIAN EMERALD AND DIAMOND RING set with an octagonal step cut emerald of approximately 7.00 carats, the band set with round brilliant cut diamonds, stamped 18K, size P / 7.75, 6.2g. 

Estimate £3,000 - £5,000

AN OPAL AND DIAMOND CLUSTER RING

Estimate £500 - £700

AN AQUAMARINE AND DIAMOND RING in platinum, set with an oval cut aquamarine of 4.65 carats in a cluster of round brilliant and princess cut diamonds, partial British hallmarks, size M / 6.25, 8.6g. 

Estimate £3,000 - £4,000

NO RESERVE - A DIAMOND RING set with a polki cut diamond, no assay marks, size N1/2 / 7, 1.3g. 

Estimate £80 - £120

A RUBY AND DIAMOND CLUSTER RING set with an octagonal step cut ruby of 0.92 carats in a cluster of round cut diamonds, stamped 375, size N / 6.75, 3.0g. 

Estimate £250 - £350

A DIAMOND FLOWER RING set with a round brilliant cut diamond of approximately 0.46 carats in a border of tapered baguette cut diamonds, no assay marks, size I / 4.25, 7.7g. 

Estimate £700 - £900

A RUBY RING set with a cabochon ruby carved to depict a leaf, no assay marks, size L1/2 / 6, 1.1g. 

Estimate £80 - £120

A RUBY AND DIAMOND CLUSTER RING set with an oval cut ruby of approximately 0.90 carats in a double cluster of round brilliant cut diamonds, stamped 750, size P1/2 / 8, 3.6g. 

Estimate £300 - £500

A SAPPHIRE FULL ETERNITY RING set all around with a row of square step cut sapphires, no assay marks, size M1/2 / 6.5, 2.8g. 

Estimate £300 - £500

A TANZANITE AND DIAMOND HALO RING in platinum, set with a cushion cut tanzanite of approximately 2.06 carats in a border of round brilliant cut diamonds, the shoulders set with further round brilliant cut diamonds, partial British hallmarks, size M /

Estimate £1,200 - £1,600

A PRASIOLITE RING in 9ct white gold, set with an oval cut prasiolite, partial British hallmarks, size I1/2 / 4.5, 6.0g. 

Estimate £150 - £250

A RUBY AND DIAMOND THREE STONE RING in 18ct white gold, set with an oval cut ruby of approximately 1.85 carats, accented by two round brilliant cut diamonds, full British hallmarks, size L1/2 / 6, 3.3g. 

Estimate £1,500 - £2,500

A RUBY AND DIAMOND CLUSTER RING set with an oval cut ruby of 0.65 carats in a cluster of round brilliant cut diamonds all totalling 0.60 carats, inscribed 0.65 D0.60, stamped PT900, size K / 5.25, 5.8g. 

Estimate £800 - £1,200

AN INDIAN DIAMOND AND ENAMEL RING set with a flat cut diamond in a border of red and white enamel, accented by further rose cut diamonds, no assay marks, size N / 6.75, 7.3g. 

Estimate £120 - £160

A BLUE PASTE AND EMERALD CLUSTER RING in yellow gold, set with a round cut blue paste stone in a cluster of round cut emeralds, partially obscured British hallmarks, size D / 2, 1.6g. 

Estimate £100 - £150