FRANK GEHRY FOR TIFFANY & CO., A TORQUE RING in 18ct white gold, designed as an asymmetrical curved band, signed Frank Gehry, signed Tiffany & Co., full British hallmarks, size I1/2 / 4.5, 6.2g. Accompanied by a Tiffany & Co. ring box. 

Estimate £300 - £500

ANDREW GRIMA, A VINTAGE DIAMOND DRESS RING, 1970 in 18ct yellow gold, designed as a stylised flower set with single cut diamonds, signed Andrew Grima, HJCo maker's mark, full British hallmarks for London 1970, size M / 6.25, 9.1g. 

Estimate £2,500 - £3,500

A GREEN TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with an oval cabochon green tourmaline of 17.43 carats between trios of round brilliant cut diamonds, inscribed TM 17.43 0.08ct, full British hallmarks, size M / 6.25, 7.2g. 

Estimate £1,000 - £1,500

JOHN DONALD, A VINTAGE DIAMOND RING, 1964 in 18ct yellow gold, in modernist design, set with round brilliant cut diamonds, full British hallmarks for London 1964, size L1/2 / 6, 14.5g. 

Estimate £800 - £1,200

A VINTAGE EMERALD AND DIAMOND RING in yellow gold, set with an octagonal step cut emerald of approximately 5.21 carats, the shoulders set with round brilliant cut diamonds all totalling 0.6-0.8 carats, no assay marks, size J / 4.75, 5.8g.

Estimate £2,000 - £3,000

A DIAMOND BAND RING in 18ct white gold, pave set with three rows of round cut diamonds, signed Oro Griego, stamped 750, size L / 5.75, 7.6g. 

Estimate £400 - £600

AN AQUAMARINE AND DIAMOND RING in 18ct white gold, set with an octagonal step cut aquamarine of 1.50 carats, the band half set with a row of round brilliant cut diamonds, full British hallmarks, size M / 6.25, 4.1g. 

Estimate £800 - £1,200

A DIAMOND GYPSY RING in 18ct yellow gold, set with a round brilliant cut diamond of approximately 0.25 carats, stamped 750, size V / 10.75, 13.3g.  

Estimate £800 - £1,200

A VINTAGE CITRINE DRESS RING in 18ct yellow gold, set with an oval cut citrine accented by braided gold work, London import marks for 1992, size M1/2 / 6.5, 8.5g. 

Estimate £300 - £500

ELIZABETH GAGE, A PEARL AND DIAMOND RING in 18ct yellow gold, set with a pearl of 9.6mm and round brilliant cut diamonds, accented by beaded and twisted wirework, signed Elizabeth Gage, full British hallmarks, size N / 6.75, 12.3g. 

Estimate £500 - £700

AN AMETHYST, GARNET AND DIAMOND CLUSTER RING in 18ct rose gold, comprising a cluster of oval and round rose cut amethysts and garnets, accented by round brilliant cut diamonds, full British hallmarks, size M1/2 / 6.5, 6.1g. 

Estimate £500 - £700

A PINK TOURMALINE DRESS RING in yellow gold, set with three cabochon pink tourmalines on a bifurcated band, no assay marks, M1/2 / 6.5, 7.2g. 

Estimate £300 - £500

AN ART DECO 1.91 CARAT SOLITAIRE DIAMOND RING in platinum, set with an old European cut diamond of 1.91 carats, the shoulders accented by round cut diamonds, stamped PLAT, size N1/2 / 7, 3.8g. 

Estimate £4,500 - £5,500

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with oval, round and pear cut sapphires totalling 2.37 carats, accented by two rows of round brilliant cut diamonds, inscribed D0.48 S2.37, stamped 750, size M / 6.25, 6.6g. 

Estimate £2,000 - £3,000

A DIAMOND, SYNTHETIC RUBY AND SAPPHIRE CLUSTER RING in 18ct white gold, set with a round brilliant cut diamond in a cluster of single cut diamonds and square step cut synthetic rubies and sapphires, stamped 750, size L / 5.75, 3.1g. 

Estimate £400 - £600

A 2.66 CARAT SOLITAIRE DIAMOND RING set with a round brilliant cut diamond of 2.66 carats between two baguette cut diamonds, no assay marks, size K / 5.25, 4.8g. 

Estimate £8,000 - £12,000

A THREE STONE DIAMOND RING in platinum, set with three round brilliant cut diamonds totalling 0.35 carats, full British hallmarks, size M1/2 / 6.5, 4.1g.

Estimate £600 - £800

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 £4,000 - £6,000

A YELLOW AND WHITE DIAMOND CLUSTER RING in 18ct white gold, set with a marquise cut yellow diamond of 1.11 carats in a border of round brilliant cut yellow diamonds, within further borders of marquise and round brilliant cut diamonds, the diamonds al

Estimate £6,000 - £8,000

RAYMOND YARD, A DIAMOND THREE STONE RING, CIRCA 1940 set with three old European cut diamonds to an openwork mount set with further old cut diamonds, the principal diamond of approximately 1.40 carats, the diamonds all totalling 2.5-3.0 carats, signe

Estimate £6,000 - £8,000

A RUBY AND DIAMOND THREE STONE RING in 18ct white gold, set with a round cut ruby of 0.63 carats between two round brilliant cut diamonds both totalling 0.55 carats, full British hallmarks, size M / 6.25, 3.9g. 

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut emerald of 1.97 carats in a cluster of round brilliant cut diamonds, stamped 750, size O / 7.25, 6.1g. 

Estimate £1,500 - £2,500

AN ILLUSION SET DIAMOND HALF ETERNITY RING in platinum, set with baguette and round brilliant cut diamonds all totalling 1.38 carats, full British hallmarks, size N1/2 / 7, 7.3g.

Estimate £2,000 - £3,000

NO RESERVE - A GOLD CHAIN RING in yellow gold, comprising a band of flexible brick links, no assay marks, size R1/2 / 9, 2.4g. 

Estimate £80 - £120

A FIRE OPAL AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut fire opal of 1.40 carats in a cluster of round brilliant cut diamonds all totalling 0.97 carats, full British hallmarks, size M1/2 / 6.5, 5.7g. 

Estimate £2,000 - £3,000

A THREE STONE DIAMOND RING in 18ct yellow and white gold, set with three round brilliant cut diamonds all totalling 1.0-1.2 carats, stamped 18ct, size O / 7.25, 3.2g. 

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND CLUSTER RING in 18ct white gold, set with an octagonal step cut emerald of 4.10 carats in a cluster of round brilliant cut diamonds, stamped 750, size M1/2 / 6.5, 7.8g. 

Estimate £2,500 - £3,500

A LAPIS LAZULI RING in 18ct yellow gold, set with a round polished lapis lazuli in a beaded border, stamped K18, size M1/2 / 6.5, 6.1g. 

Estimate £200 - £300

AN ANTIQUE CORAL AND DIAMOND RING, EARLY 20TH CENTURY in 14ct yellow gold, the oval face set with a cabochon coral and an old cut diamond accented by further old cut diamonds, partial British hallmarks, size N1/2 / 3.9g.

Estimate £1,500 - £2,500

AN AQUAMARINE AND DIAMOND RING in 18ct white gold, set with an oval cut aquamarine of approximately 2.50 carats accented by round brilliant cut diamonds, stamped 18K 750, size L1/2 / 6, 4.3g. 

Estimate £500 - £700

A DIAMOND CLUSTER RING set with a cluster of round brilliant cut diamonds on a trifurcated band, no assay marks, size N / 6.75, 5.1g. 

Estimate £400 - £600

A SAPPHIRE AND DIAMOND CLUSTER RING in white gold, set with an octagonal step cut sapphire of 4.95 carats in a cluster of round brilliant cut diamonds, the shoulders set with further diamonds, the diamonds all totalling 2.25 carats, stamped 18K, size

Estimate £5,000 - £7,000

AN AQUAMARINE AND DIAMOND RING in 18ct white gold, set with an octagonal step cut aquamarine of approximately 10.20 carats, accented by trios of round brilliant cut diamonds, stamped 750, size Q / 8.25, 9.6g. 

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an octagonal step cut emerald in a cluster of round brilliant cut diamonds, stamped 18ct., size H1/2 / 4, 6.2g. 

Estimate £400 - £600

AN ART DECO DIAMOND RING in platinum, set with an old European cut diamond of approximately 1.64 carats accented by old cut diamonds, stamped PLATINUM, size L1/2 / 6, 6.3g. 

Estimate £2,500 - £3,500

A SAPPHIRE AND DIAMOND THREE STONE RING in 18ct white gold, set with an oval cut sapphire of 1.01 carats between two round brilliant cut diamonds both totalling 0.46 carats, partial British hallmarks, size M / 6.25, 3.1g.

Estimate £1,500 - £2,500

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 £3,000 - £5,000

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 £1,200 - £1,600

AN ONYX, DIAMOND AND EMERALD BIRD RING in 18ct rose gold, designed as a parrot set with round cut diamonds, emeralds and onyx, stamped 750, size L / 5.75, 17.4g.

Estimate £2,000 - £3,000

AN AMETHYST AND DIAMOND RING in 14ct yellow gold, set with a fancy mixed cut amethyst of approximately 50.00 carats, in a border or round brilliant cut diamonds totalling 0.7-0.8 carats, to a scrolled open work basket, stamped 585, size P1/2 / 7.75,

Estimate £1,000 - £1,500

A DIAMOND DRESS RING in 18ct white gold, the open work face set with four clusters of marquise cut diamonds accented by two rows of round brilliant cut diamonds, the diamonds all totalling 2.4-2.6 carats, no assay marks, size N / 6.75, 8.7g. 

Estimate £3,000 - £5,000

AN ILLUSION SET DIAMOND CLUSTER RING in 18ct white gold, set with a princes cut and marquise cut diamonds in a halo of round brilliant cut diamonds to diamond set shoulders, all totalling 0.8-0.9 carats, partial British hallmarks, stamped 18K 750, si

Estimate £1,200 - £1,800

A STAR RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with a star ruby of 12.73 carats in a cluster of round brilliant cut diamonds, inscribed 12.73 d0.144ct, stamped Au750, size N / 6.75, 6.5g. 

Estimate £1,000 - £1,500

AN ANTIQUE DIAMOND AND PEARL TOI ET MOI RING in 14ct yellow gold and platinum, set with an old cut diamond of approximately 0.45 carats and a pearl, accented by rows of single cut diamonds, stamped 585, size L1/2 / 6, 3.5g. 

Estimate £1,000 - £1,500

VAN CLEEF & ARPELS, A VINTAGE CHRYSOPRASE DRESS RING in 18ct yellow gold, set with a cabochon chrysoprase on a twisted band, signed VCA and numbered, French assay marks, size H / 3.75, 5.4g. 

Estimate £1,500 - £2,500

A SOLITAIRE DIAMOND RING in platinum, set with a princess cut diamond of approximately 1.00 carat, full British hallmarks, size J1/2 / 5, 5.5g.

Estimate £2,000 - £3,000

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 £2,500 - £3,500

A THREE STONE DIAMOND RING in 18ct yellow gold, set with three round brilliant cut diamonds, the diamonds all totalling 2.34 carats, partial British hallmarks, size M / 6.25, 4.1g.

Estimate £2,000 - £3,000

AN ILLUSION SET DIAMOND CLUSTER RING in 18ct rose gold, set with baguette cut and round brilliant cut diamonds in a double halo of round brilliant cut diamonds, the band half set with two rows of round brilliant cut diamonds, full British hallmarks,

Estimate £800 - £1,200

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 BURMA NO HEAT RUBY AND DIAMOND BALLERINA RING set with an oval cut ruby of 2.58 carats in a border of tapered baguette diamonds, no assay marks, size O1/2 / 7.5, 4.6g. Accompanied by a gemmological report stating that the ruby is of Burmese (Myanma

Estimate £15,000 - £25,000

A CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a cushion cut sapphire of 7.98 carats accented by baguette cut diamonds, stamped 750, size M / 6, 4.3g. Accompanied by a gemmological report stating that the sapphire is of Ceylo

Estimate £8,000 - £12,000

GRAFF, AN IMPORTANT 5.05 CARAT G COLOUR, VS1 SOLITAIRE DIAMOND RING in platinum, set with an emerald cut diamond of 5.05 carats between tapered baguette cut diamonds, signed GRAFF, stamped PT 900, size L1/2 / 6, 7.2g. Accompanied by a gemmological re

Estimate £100,000 - £150,000

A GREEN TOURMALINE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut green tourmaline of 1.40 in a border of round brilliant cut diamonds, inscribed 1.40ct d0.125ct, stamped Au750, size N / 6.75, 4.5g. 

Estimate £600 - £800

A 5.80 CARAT SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of approximately 5.80 carats, partial British hallmarks, size L1/2 / 6, 11.3g. 

Estimate £35,000 - £45,000

BOUCHERON, A SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of approximately 0.35 carats, signed Boucheron, stamped 950 PT, size K1/2 / 5.5, 7.4g. 

Estimate £500 - £700

AN OPAL, AMETHYST AND DIAMOND COCKTAIL RING in 18ct yellow gold, set with a cabochon opal of 7.66 carats in a border of round brilliant cut diamonds and pear cut amethysts, inscribed 7.66ct 8.40ct d0.451ct, stamped Au750, size O / 7.25, 10.5g. 

Estimate £1,000 - £1,500

AN ART DECO DIAMOND RING in 18ct white gold, set with an old European cut diamond of 0.91 carats accented by single cut diamonds, stamped 18K, size P / 7.75, 3.9g. 

Estimate £1,200 - £1,600

AN AGATE AND DIAMOND COCKTAIL RING in 18ct yellow gold, set with a large polished agate within a twisted gold border accented by round brilliant cut diamonds, inscribed 24.88ct d0.308ct, stamped Au750, size N1/2 / 7, 13.6g. 

Estimate £600 - £800

A RUBY AND DIAMOND DRESS RING in 18ct white gold, set with a cushion cut ruby of 1.47 carats in a cluster of rose cut diamonds, accented by pave set round brilliant cut diamonds, the diamonds all totalling 1.89 carats, full British hallmarks, size L

Estimate £3,000 - £5,000

AN EMERALD AND DIAMOND CLUSTER RING in 18ct black rhodium plated gold, set with an oval cut emerald of 5.03ct, in borders of round brilliant cut diamonds and round cut emeralds, signed RR, stamped 750, size N / 6.75, 10.6g.

Estimate £3,000 - £5,000

A SAPPHIRE AND DIAMOND CLUSTER RING in white gold, set with a round brilliant cut diamond in a cluster of pear cut sapphires totalling 1.00 carats, accented by further round brilliant cut diamonds, further round brilliant cut diamonds set to the band

Estimate £1,500 - £2,500

A SOLITAIRE DIAMOND RING set with an oval cut diamond of approximately 0.73 carats, the shoulders accented by round cut diamonds, no assay marks, size M / 6.25, 3.5g. 

Estimate £1,200 - £1,600

A DIAMOND CROSSOVER RING in 18ct white gold, in a stylised crossover design, pave set with round brilliant cut diamonds all totalling 3.65 carats, inscribed D3.651, stamped 750, size N1/2 / 7, 14.6g. 

Estimate £2,000 - £3,000

A SOLITAIRE DIAMOND RING in platinum, set with an old European cut diamond of approximately 3.00 carats, the shoulders accented by baguette cut diamonds, stamped PLAT, size M1/2 / 6.5, 4.4g.  c

Estimate £20,000 - £30,000

AN ILLUSION SET DIAMOND RING in 18ct white gold, set with an Asscher cut, baguette cut and round brilliant cut diamonds, to diamond set shoulders, full British hallmarks, stamped 18K, size M / 6.25, 3.3g.

Estimate £1,200 - £1,800

BOUCHERON, A DIAMOND ETERNITY RING in 18ct yellow gold, set throughout with round brilliant cut diamonds, signed Boucheron and numbered, stamped 750, size J1/2 / 5, 5.0g. 

Estimate £1,200 - £1,600

A YELLOW SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with an oval cut yellow sapphire of 1.22 carats between two tapered baguette cut diamonds, full British hallmarks, size M / 6.25, 3.6g. 

Estimate £1,000 - £1,500

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

A THREE STONE EMERALD AND DIAMOND RING in 18ct white gold, set with three round cut emeralds in halos of round brilliant cut diamonds, full British hallmarks, size L1/2 / 6, 3.5g.

Estimate £800 - £1,200

A DIAMOND RING in crossover design, set throughout with round brilliant cut diamonds, marked indistinctly, size N / 6.75, 12.8g. 

Estimate £500 - £700

AN OPAL AND DIAMOND RING in 18ct yellow gold, the openwork face set with a marquise shaped cabochon opal of 3.33 carats, accented by round brilliant cut diamonds, inscribed 3.33ct d0.343ct, stamped Au750, size N / 6.75, 5.6g. 

Estimate £800 - £1,200

A DIAMOND, EMERALD AND ONYX PANTHER RING in 18ct white gold, the open framework set with round cut diamonds, marquise cut emerald eyes and a polished onyx nose, the diamonds all totalling 1.4-1.6 carats, no assay marks, size N / 6.75, 30.8g.

Estimate £8,000 - £12,000

BULGARI, A B.ZERO 1 BANGLE in 18ct rose gold, with engraved lettering 'BVLGARI' to the sides, signed Bvlgari and numbered, stamped 750, inner circumference 18.0cm, 24.6g. Accompanied by original box and papers.

Estimate £2,500 - £3,500

A TURQUOISE ETERNITY RING in 14ct yellow gold, set with a row of round cabochon turquoise, stamped 14K, size P / 7.75, 1.1g. 

Estimate £150 - £250

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut aquamarine of 3.66 carats in a stylised cluster of round brilliant cut diamonds, inscribed 3.66ct d0.431ct, stamped Au750, size N / 6.75, 5.0g. 

Estimate £1,000 - £1,500

A 3.02 CARAT G COLOUR, VVS2 SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of 3.02 carats, stamped PLATINUM, size O / 7.25, 4.6g. Accompanied by a gemmological report from the GIA stating the diamond is of G colour and VVS

Estimate £40,000 - £50,000

A VINTAGE BAND RING in 18ct yellow and white gold, the stylised band in yellow gold accented by white gold, London import mark for 1995, size N1/2 / 7, 10.1g. 

Estimate £300 - £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

A THREE STONE DIAMOND RING in platinum, set with a princess cut diamond between two round brilliant cut diamonds, all totalling 0.7-0.8 carats, full British hallmarks, size M1/2 / 6.75, 4.1g. 

Estimate £1,000 - £1,500

AN IOLITE AND DIAMOND RING in 18ct white gold, set with an elongated octagonal step cut iolite of 5.45 carats, the stepped shoulders and band set with round brilliant cut diamonds, inscribed 5.45 D0.225, stamped Au750, size N / 6.75, 5.3g.  

Estimate £1,000 - £1,500

A 2.10 CARAT SOLITAIRE DIAMOND RING set with an old cut diamond of 2.10 carats to a stylised mount, no assay marks, size N / 6.75, 4.2g. 

Estimate £5,000 - £7,000

AN ART DECO SOLITAIRE DIAMOND RING in platinum, set with an old European cut diamond of 4.58 carats, French import mark, size J / 4.75, 3.9g. 

Estimate £18,000 - £22,000

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

AN ART DECO DIAMOND CLUSTER RING set with an old European cut diamond of approximately 0.96 carats in a cluster of further old European cut diamonds, no assay marks, size M / 6.25, 4.5g. 

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND RING set with a round cut sapphire, the shoulders set with round brilliant cut diamonds, no assay marks, size O / 7.25, 2.1g. 

Estimate £250 - £350

AN AUSTRIAN ART DECO SAPPHIRE, PEARL AND DIAMOND RING in platinum, gold and silver, the geometric face set with an oval cut sapphire and two pearls, accented by rows of step cut sapphires and old and rose cut diamonds, Austrian assay marks, size L /

Estimate £1,200 - £1,600

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut sapphire of approximately 4.20 carats within a cluster of round brilliant cut diamonds, the band set with further diamonds, the diamonds all totalling 1.3-1.5 carats, no assay mark

Estimate £4,000 - £6,000

A TANZANITE, OPAL AND DIAMOND RING in 18ct white gold, set with a cabochon tanzanite of 12.85 carats between two cabochon opals, accented by a border of round brilliant cut diamonds, inscribed 12.85 1.60ct d0.430, partial British hallmarks, size N /

Estimate £600 - £800

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 £600 - £800

AN EMERALD AND DIAMOND THREE STONE RING in 18ct white gold, set with an oval cut emerald of 4.45 carats between two fancy cut diamonds both totalling 0.43 carats, stamped 750, size N / 6.75, 3.7g. 

Estimate £1,000 - £1,500

AN EMERALD ETERNITY RING in 14ct yellow gold, set all around with three rows of oval cabochon emeralds, stamped 14K, size N / 6.75, 2.7g. 

Estimate £250 - £350

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 CLUSTER RING in 18ct white gold, set with an oval cut sapphire of 1.96 carats in a cluster of round brilliant cut diamonds, stamped 750, size P / 7.75, 4.7g. 

Estimate £1,000 - £1,500

A COLOMBIAN EMERALD AND DIAMOND RING in 18ct yellow gold, set with an octagonal step cut emerald of approximately 5.40 carats accented by pairs of round brilliant cut diamonds, the diamonds all totalling 0.9-1.1 carat, stamped 750, size R / 8.5, 11.0

Estimate £6,000 - £8,000

A DIAMOND RING in 18ct yellow gold, the kite shaped face set with old cut diamonds, stamped 18CT, size M / 6.25, 4.9g. 

Estimate £800 - £1,200

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 CLUSTER RING in 18ct white gold, set with an oval cut ruby of 1.42 carats in an openwork border set with round brilliant cut diamonds, the band set with further diamonds, inscribed R 1.42 d0.291ct, stamped Au750, size N / 6.75, 3.6

Estimate £600 - £800

GRAFF, A FANCY INTENSE YELLOW DIAMOND RING set with a radiant cut yellow diamond of 1.00 carats accented on each side by a pear cut white diamond, the diamonds all totalling 1.63 carats, signed Graff, no assay marks, size M / 6.5, 7.7g. Accompanied b

Estimate £5,000 - £7,000

AN OPAL FULL ETERNITY RING in 14ct yellow gold, set all around with a row of round cabochon opals, stamped 14k, size T1/2 / 9.75, 1.2g. 

Estimate £150 - £250

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 round cut diamonds, stamped 14K, size N / 6

Estimate £800 - £1,200

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 £1,200 - £1,600

A DIAMOND THREE STONE RING in 18ct yellow gold, set with three round brilliant cut diamonds of 1.52 carats, 1.52 carats and 1.75 carats respectively, all totalling 4.79 carats, partial British hallmarks, size M / 6.25, 5.7g.

Estimate £8,000 - £12,000

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 round cut diamonds, stamped 18CT, size N1/2 / 7, 4.3g. Accompanied by a gemmological re

Estimate £1,200 - £1,600

A SOLITAIRE DIAMOND RING in platinum, set with a princess cut diamond, the band accented by a row of round brilliant cut diamonds, full British hallmarks, size L / 5.75, 3.8g.

Estimate £500 - £700

A 5.28 CARAT SOLITAIRE DIAMOND 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 RUBY DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut ruby of approximately 0.91 carats within a double cluster of round brilliant cut diamonds, stamped 750, size P1/2 / 8, 3.6g.

Estimate £600 - £800

A SAPPHIRE AND DIAMOND DRESS RING set with a cluster of marquise cut sapphires and brilliant cut diamonds, no assay marks, size Q / 8.25, 7.0g.

Estimate £400 - £600

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of 1.05 carats in a cluster of round brilliant cut diamonds, stamped 750, size N1/2 / 7, 4.5g

Estimate £600 - £800

A SAPPHIRE HALF ETERNITY RING in 14ct yellow gold, set with seven oval cut sapphires, stamped 14K, size O / 7.25, 1.4g. 

Estimate £200 - £300

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of approximately 3.63 carats accented by clusters of round brilliant cut diamonds, the diamonds totalling 2.1-2.2 carats, stamped 18CT, size O / 7.25, 8.6g. 

Estimate £1,500 - £2,500

A DIAMOND HALO RING in platinum, set with a round brilliant cut diamond in a halo of round brilliant cut diamonds, accented by a diamond set basket and shoulders, full British hallmarks, size L1/2 / 6, 4.0g.

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND CLUSTER RING in platinum, set with a round cut emerald in a double of halo of round brilliant cut diamonds, to a bifurcated shank set with round brilliant cut diamonds, partial British hallmarks, stamped PT950, size L / 5.75, 4

Estimate £600 - £800

AN ORANGE SAPPHIRE ETERNITY RING in 18ct yellow gold, set all around with a row of octagonal step cut orange sapphires all totalling 4.0-4.4 carats, stamped 750, size N / 6.5, 2.8g.

Estimate £400 - £600

A BLUE TOPAZ AND DIAMOND RING in 18ct yellow gold, set with a faceted blue topaz accented by round brilliant cut diamonds, stamped 750, N1/2 / 7, 7.6g. 

Estimate £800 - £1,200