TIFFANY & CO., AN ETOILE DIAMOND BAND RING in 18ct yellow gold and platinum, set with round brilliant cut diamonds, signed Tiffany & Co., stamped 750 pt950, size M / 6.25, 5.5g. 

Estimate £400 - £600

AN AQUAMARINE AND DIAMOND RING in 18ct white gold, set with an elongated step cut aquamarine of 3.46 carats, the stepped shoulders set with round brilliant cut diamonds, the band accented by further round brilliant cut diamonds, inscribed S3.46ct d0.

Estimate £800 - £1,200

CARTIER, AN ETINCELLE DE CARTIER DIAMOND ETERNITY RING in 18ct yellow gold, set with a row of round brilliant cut diamonds, signed Cartier and numbered, stamped 750, size N1/2 / 7, 1.9g. Accompanied by original box and Cartier certificate of authenti

Estimate £1,000 - £1,500

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 1.71 carats to diamond set shoulders, full British hallmarks, size M1/2 / 6.5, 5.8g. 

Estimate £6,000 - £8,000

A MULTICOLOURED SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with a row of oval cut blue, green, orange, pink and yellow sapphires in clusters of round cut diamonds, full British hallmarks, size L1/2 / 6, 3.8g. 

Estimate £800 - £1,200

A VINTAGE DIAMOND CLUSTER RING in 18ct yellow gold and platinum, set with a cluster of old mine cut diamonds, maker's mark H.E.S, stamped 18CT & PT, size P1/2 / 8, 2.5g.

Estimate £600 - £800

DE VROOMEN, A VINTAGE SAPPHIRE AND DIAMOND SNAKE RING in 18ct yellow gold, set with a kite cut sapphire to the head, accented by single, round brilliant and baguette cut diamonds, signed LDV, full British hallmarks for London 1977, size N1/2 / 6.75,

Estimate £1,200 - £1,600

A DIAMOND CLUSTER RING in 18ct yellow gold, set with a cluster of rose cut diamonds to an openwork surround, stamped 750, size N1/2 / 7, 4.5g. 

Estimate £400 - £600

A PEARL AND DIAMOND DRESS RING in 18ct yellow gold, set with a pearl of 8.3mm, the shoulders set with  baguette and round brilliant cut diamonds, stamped 750, size M1/2 / 6.5, 3.7g. 

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 £1,500 - £2,500

A VINTAGE PEARL, RUBY AND DIAMOND DRESS RING in yellow gold and platinum, set with a brown pearl within a stylised trefoil motif set with rose cut diamonds and calibre cut rubies, no assay marks, size P1/2 / 7.75, 3.8g.

Estimate £1,500 - £2,500

A MULTICOLOURED TOURMALINE TASSEL DRESS RING in 14ct yellow gold, designed as a cluster of articulated gold chains terminating in multicoloured tourmaline beads, signed SONIA B., stamped 14K ITALY, size L1/2 / 6, 16.4g. 

Estimate £400 - £600

A YELLOW DIAMOND FULL ETERNITY RING in 18ct yellow gold, set with a row of round brilliant cut yellow diamonds, stamped 750, size N / 6.75, 1.90g. 

Estimate £300 - £500

AN ANTIQUE GEMSET HAREM RING in gold and silver, formed of five connected rings set with sapphires, rubies, demantoid garnets, pearls and diamonds, no assay marks, size N / 6.75, 6.0g.

Estimate £1,200 - £1,600

AN AQUAMARINE DRESS RING in 18ct yellow gold, set with a rectangular step cut aquamarine, stamped 750, size E1/2 / 3, 8.7g. 

Estimate £250 - £350

A DIAMOND CLUSTER RING in platinum, set with a round brilliant cut diamond of 0.48 carats within a two row border of round brilliant cut diamonds, the band set with further diamonds, full British hallmarks, size K / 5.25, 5.7g. 

Estimate £1,000 - £1,500

A DIAMOND CLUSTER RING set with a round brilliant cut diamond in a cluster of single cut diamonds, partial British hallmarks, size M1/2 / 6.5, 3.0g. 

Estimate £300 - £500

A RUBY ETERNITY RING set all around with a row of step cut rubies, no assay marks, size L1/2 / 6, 2.1g. 

Estimate £700 - £900

A 2.56 CARAT SOLITAIRE DIAMOND RING set with an old cut diamond of approximately 2.56 carats, the shoulders accented by further old and single cut diamonds, no assay marks, size N1/2 / 7, 3.4g. 

Estimate £8,000 - £12,000

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 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 BELLE EPOQUE RUBY, DIAMOND AND PEARL PENDANT in yellow gold and platinum, the openwork frame set with pearls and accented by diamond set bow motifs, the inner frame set with calibre cut rubies suspending an articulated old cut pear shaped diamond d

Estimate £3,000 - £5,000

A VINTAGE EMERALD AND DIAMOND THREE STONE RING in 18ct yellow and white gold, set with a round cut emerald between two old cut diamonds, stamped 18ct, size N1/2 / 7, 2.6g. 

Estimate £800 - £1,200

A DIAMOND NAVETTE RING in yellow gold and silver, set to the centre with an old cut diamond of approximately 0.30 carats, to a surround of further old cut diamonds, the diamonds all totalling 1.8-2.3 carats, no assay marks, size P1/2 / 8, 4.2g. 

Estimate £2,000 - £3,000

A DIAMOND HALF ETERNITY RING set with two rows of round brilliant cut diamonds, no assay marks, size P / 7.75, 5.9g. 

Estimate £600 - £800

A RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a round cut ruby of 0.95 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N1/2 / 7, 4.9g. 

Estimate £1,200 - £1,600

A VINTAGE DIAMOND DRESS RING in yellow and white gold, formed of rope-work design set with two round brilliant cut diamonds, no assay marks, size N / 6.75, 7.9g.

Estimate £800 - £1,200

A SOLITAIRE DIAMOND RING in 18ct yellow gold, set with a round brilliant cut diamond of approximately 2.20 carats, stamped 750, size N1/2 / 7, 4.8g.

Estimate £10,000 - £15,000

A VINTAGE FRENCH SAPPHIRE DRESS RING in 18ct yellow gold, set with a cabochon sapphire of approximately 2.17 carats to a stylised ridged setting, French assay marks, stamped 750, size X / 11.5, 34.1g.

Estimate £1,500 - £2,500

A FRENCH HEMATITE AND DIAMOND DRESS RING in 18ct yellow gold, set with two curved sections of hematite, to a diamond set central section, French maker's mark, French assay marks, size L / 5.75, 7.7g. 

Estimate £400 - £600

A SOLITAIRE DIAMOND ENGAGEMENT RING in platinum, set with a round brilliant cut diamond of 0.60 carats to diamond set shoulders, full British hallmarks, size L1/2 / 6, 4.2g. 

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with a heart shaped sapphire in a cluster of old cut diamonds, stamped 18CT, size M / 6.25, 4.0g. 

Estimate £1,500 - £2,500

A SOLITAIRE DIAMOND ENGAGEMENT RING set with an old European cut diamond of 4.46 carats, no assay marks, size M1/2 / 6.5, 5.3g. 

Estimate £25,000 - £35,000

A RUBELLITE TOURMALINE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut rubellite tourmaline of 2.70 carats in a double border of round cut diamonds, stamped Au750, size N / 6.75, 4.5g.

Estimate £600 - £800

A SAPPHIRE ETERNITY RING set all around with a row of square step cut sapphires, no assay marks, size M / 6.25, 3.3g. 

Estimate £600 - £800

AN EMERALD AND DIAMOND TARGET RING set with an old European cut diamond of approximately 0.90 carats, to a surround of calibre cut emeralds, no assay marks, size L1/2 / 6, 3.8g.

Estimate £2,500 - £3,500

AN EMERALD AND DIAMOND HALF ETERNITY RING in platinum, set with a row of alternating round cut emeralds and round brilliant cut diamonds, full British hallmarks, size M / 6.25, 3.4g. 

Estimate £500 - £700

A DIAMOND FIVE STONE RING in platinum, set with five round brilliant cut diamonds, the diamonds all totalling 1.04 carats, full British hallmarks, size M1/2 / 6.5, 5.1g. 

Estimate £1,500 - £2,500

A PINK SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a cushion cut pink sapphire of approximately 1.20 carats, the band accented by round brilliant cut diamonds, full British hallmarks, size M1/2 / 6.5, 4.0g. 

Estimate £600 - £800

A RUBY AND DIAMOND TARGET RING in 18ct white gold, set to the centre with a round brilliant cut diamond of approximately 0.45 carats, to a surround of calibre cut rubies and a further surround of round brilliant cut diamonds, stamped 750, size O1/2 /

Estimate £1,500 - £2,500

A DIAMOND CLUSTER RING in platinum, set with a round brilliant cut diamond of 2.01 carats to a surround of round brilliant cut diamonds, the band set with further diamonds, full British hallmarks, size N1/2 / 7, 7.5g. 

Estimate £10,000 - £15,000

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

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

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut aquamarine of approximately 2.63 carats in a cluster of round brilliant cut diamonds totalling 1.3-1.5 carats, partial British hallmarks, size M1/2 / 6.5, 5.8g.

Estimate £2,500 - £3,500

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

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 DIAMOND AND SAPPHIRE DRESS RING in platinum, set with a round brilliant cut diamond of approximately 0.90 carats accented by two marquise cut sapphires, to a surround of old cut diamonds, no assay marks, size O / 7.25, 7.8g. 

Estimate £1,500 - £2,500

AN AQUAMARINE AND DIAMOND DRESS RING in 18ct white gold, set with an oval cut aquamarine to a surround of round brilliant cut diamonds, the band set with further diamonds, stamped 750, size J / 4.75, 6.2g. 

Estimate £1,500 - £2,500

AN EMERALD AN EMERALD AND DIAMOND RING in 18ct white gold, set with a trillion cut emerald of 1.28 carats in a border of round brilliant cut diamonds, inscribed E1.28ct d0.173ct, stamped Au750, size N1/2 / 7, 3.7g.  DIAMOND RING

Estimate £800 - £1,200

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

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

A YELLOW SAPPHIRE AND DIAMOND RING in platinum, set with an octagonal step cut yellow sapphire of 3.20 carats, to diamond set shoulders, stamped PLAT, size L1/2 / 6, 4.1g. 

Estimate £800 - £1,200

A SAPPHIRE AND DIAMOND DRESS RING in 18ct yellow gold, set with a cabochon sapphire of approximately 1.77 carats between two shield cut diamonds, with rope detailing, partial British hallmarks, size L1/2 / 5.5, 10.7g. 

Estimate £1,000 - £1,500

A RUBY AND DIAMOND BOMBE RING in 18ct yellow gold, set throughout with round cut rubies, accented by rows of round brilliant cut diamonds, no assay marks, size J1/2 / 5, 9.4g. 

Estimate £2,000 - £3,000

A PERIDOT CLUSTER RING in 18ct yellow gold, set with five oval cut peridots in a flower design, French hallmarks, size M1/2 / 6.5, 4.9g. 

Estimate £300 - £500

A VINTAGE YELLOW SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with an octagonal step cut yellow sapphire of approximately 3.60 carats, to baguette cut diamond set shoulders, stamped 18K, size L / 5.75, 6.5g. 

Estimate £800 - £1,200

A PERIDOT AND DIAMOND CLUSTER RING in yellow and white gold, set with an oval cut peridot to a geometric surround set with round brilliant cut diamonds, no assay marks, size N / 6.75, 3.6g. 

Estimate £800 - £1,200

A DIAMOND SNAKE RING in 18ct yellow gold, designed as a coiled snake, the head set with five graduated old cut diamonds, stamped 18ct, size Q / 8.25, 10.9g. 

Estimate £1,000 - £1,500

A DIAMOND BAND RING in yellow gold, channel set with a row of princess cut diamonds, indistinct assay marks, size L1/2 / 3.9g. 

Estimate £250 - £350

A YELLOW SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut yellow sapphire of 1.63 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size N / 6.75, 4.7g. 

Estimate £1,200 - £1,600

A RUBY AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with a round cut ruby in a cluster of round brilliant cut diamonds, accented by round cut rubies, full British hallmarks, size O / 7.25, 3.6g.

Estimate £500 - £700

A PINK TOURMALINE AND DIAMOND CLUSTER RING in yellow gold, set with a cushion cut pink tourmaline of approximately 4.15 carats in a cluster of rose cut diamonds, no assay marks, size M1/2 / 6.5, 4.4g. 

Estimate £2,000 - £3,000

A SOLITAIRE DIAMOND RING in 18ct white gold, set with a round brilliant cut diamond of approximately 2.00 carats, stamped 18, size M1/2 / 6.5, 2.3g. 

Estimate £4,000 - £6,000

A STAR RUBY CLUSTER RING in 18ct white gold, set with a star ruby of approximately 4.20 carats, in a border of round brilliant cut diamonds, the shoulders set with further round brilliant cut diamonds, stamped 750, size L1/2 / 6, 4.6g. 

Estimate £600 - £800

A THREE STONE DIAMOND RING in platinum, set with three round brilliant cut diamonds, the diamonds all totalling 1.4-1.6 carats, stamped Pt900, size L / 5.75, 4.1g. 

Estimate £2,000 - £3,000

A DIAMOND DRESS RING in 18ct white gold, the tapering band in an openwork scrolled design accented by round brilliant cut diamonds, stamped 750 18K, size N1/2 / 7, 7.6g. 

Estimate £800 - £1,200

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 VINTAGE STAR SAPPHIRE CLUSTER RING in yellow and white gold, set with a star sapphire of approximately 3.20 carats, in a border of round cut sapphires totalling 1.0-1.2 carats, no assay marks, R1/2 / 8.75, 8.3g. Accompanied by a box.

Estimate £1,200 - £1,600

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 EMERALD AND DIAMOND RING in platinum, set with an octagonal step cut emerald of 0.70 carats in a border of round brilliant cut diamonds, further diamonds accenting the band, full British hallmarks, size M / 6.25, 4.9g. 

Estimate £1,500 - £2,500

AN OPAL AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cabochon black opal in a double border of round brilliant cut diamonds, stamped 750, size K1/2 / 5.5, 6.4g. 

Estimate £500 - £700

A SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with a mixed cut sapphire of approximately 1.80 carats in a cluster of round brilliant cut diamonds and two baguette cut diamonds, indistinct assay marks, size L1/2 / 6, 4.9g. 

Estimate £2,500 - £3,500

A DIAMOND DRESS RING in 18ct yellow gold, in a twisted design set with two rows of round brilliant cut diamonds, stamped 750 18K, size N1/2 / 7, 4.0g. 

Estimate £500 - £700

A RUBY AND DIAMOND CLUSTER RING in platinum, set with an oval cut ruby of 1.08 carats in a cluster of round brilliant cut diamonds, full British hallmarks, size L / 5.75, 5.6g. 

Estimate £1,500 - £2,500

A YELLOW DIAMOND THREE STONE RING in platinum, set with a princess cut yellow diamond of 0.70 carats, accented on each side by a heart shaped white diamond, full British hallmarks, size M / 6.25, 5.1g. 

Estimate £3,000 - £5,000

AN AMETHYST AND DIAMOND DRESS RING in 18ct rose gold, set with a cabochon cut amethyst accented by a swirl of round brilliant cut diamonds, round cut brown diamonds set to one shoulder, stamped 750, size L / 5.75, 3.7g. 

Estimate £300 - £500

A DIAMOND SOLITAIRE RING AND DIAMOND HALO RING in 18ct white gold, the diamond solitaire ring set with a round brilliant cut diamond with further round brilliant cut diamonds accenting the shoulders, with a removable pear-shaped halo ring set with ro

Estimate £300 - £500

A DIAMOND DRESS RING in 18ct white gold, stylised as a twist set with single cut and baguette cut diamonds, full British hallmarks, size M / 6.25, 4.2g. 

Estimate £300 - £500

AN EMERALD AND DIAMOND DRESS RING in 20ct white gold, set with a cabochon cut emerald of approximately 3.20 carats, to stylised shoulders set with baguette cut diamonds, stamped 20K, size P / 7.75, 7.5g. 

Estimate £1,500 - £2,000

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with a cushion cut sapphire of 2.03 carats in a cluster of round brilliant cut diamonds, the band accented by further round brilliant cut diamonds, full British hallmarks, size M1/2 / 6.5, 6.2g. 

Estimate £1,200 - £1,600

A DIAMOND THREE STONE RING in platinum, set with three round brilliant cut diamonds, the diamonds all totalling 0.50 carats, full British hallmarks, size M / 6.25, 4.0g. 

Estimate £1,000 - £1,500

A RUBY AND DIAMOND RING in 18ct white gold, set with an elongated octagonal step cut ruby of 2.10 carats in a border of round brilliant cut diamonds, the shoulders accented by further round brilliant cut diamonds, inscribed 2.10ct d0.286ct, stamped A

Estimate £1,200 - £1,600

A VINTAGE RUBY AND DIAMOND BOMBE RING in yellow gold, set to the centre with round cut ruby in a cluster of round brilliant cut diamonds, accented by further round cut rubies, to a textured gold band, no assay marks, size H1/2 / 4, 15.0g. 

Estimate £1,500 - £2,500

A VINTAGE CITRINE AND DIAMOND BOMBE RING in 18t yellow gold, set with oval cut citrines totalling 6.5-7.0 carats, accented by round brilliant cut diamonds, Italian assay marks, stamped 750, size N / 6.75, 16.6g.

Estimate £1,000 - £1,500

A BLACK DIAMOND SOLITAIRE RING in platinum, set with an oval cut black diamond of approximately 2.21 carats, the band accented by round brilliant cut diamonds, full British hallmarks, size L / 5.75, 5.9g. 

Estimate £1,500 - £2,500

A FANCY YELLOW DIAMOND SOLITAIRE ENGAGEMENT RING in platinum, set with a radiant cut fancy yellow diamond of 0.55 carats to a surround of round brilliant cut diamonds, the band set with further diamonds, full British hallmarks, size L1/2 / 6, 4.1g. A

Estimate £2,000 - £3,000

A SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut sapphire of 2.07 carats in a cluster of round brilliant cut diamonds, further round brilliant cut diamonds accenting the band, full British hallmarks, size MPPHIRE AND DIAMOND RING

Estimate £2,500 - £3,500

A SAPPHIRE AND DIAMOND HALF ETERNITY RING in 18ct yellow and white gold, set with a row of alternating round brilliant cut diamonds and French cut sapphires, stamped 750, size N / 6.75, 3.3g. 

Estimate £600 - £800

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

A GREEN TOURMALINE AND DIAMOND RING in 18ct white gold, set with a square step cut green tourmaline in a border of round brilliant cut diamonds, inscribed 1.015ct d0.432ct, stamped Au750, size N1/2 / 7, 5.6g. 

Estimate £600 - £800

A SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of 1.51 carats, full British hallmarks, size N1/2 / 7, 5.6g. 

Estimate £5,000 - £7,000

A DIAMOND THREE STONE RING in platinum, set with three round brilliant cut diamonds, to pave set diamond shoulders, full British hallmarks, size L1/2 / 6, 4.1g. 

Estimate £600 - £800

NO RESERVE - A DIAMOND BAND RING in 18ct white gold, set to the centre with a round brilliant cut diamond of approximately 0.30 carats, to diamond set shoulders, full British hallmarks, size J / 4.75, 6.2g. 

Estimate £300 - £500

AN EMERALD AND DIAMOND DRESS RING in 18ct white gold, set to the centre with a round brilliant cut diamond to a surround of square step cut emeralds, accented by further round brilliant cut diamonds, stamped 750, size O / 7.25, 6.0g.

Estimate £400 - £600

A DIAMOND CLUSTER RING in platinum, set with a round brilliant cut diamond of approximately 1.10 carats, in a border of round brilliant cut diamonds, further round brilliant cut diamonds to the band, partial British hallmarks, size N / 6.75, 4.7g. 

Estimate £1,200 - £1,600

A DIAMOND SOLITAIRE RING in platinum, set with an emerald cut diamond of approximately 0.48 carats, full British hallmarks, size L1/2 / 6, 7.4g. 

Estimate £1,500 - £2,500

A RUBY AND DIAMOND CLUSTER RING in platinum, set with a round cut ruby of 0.70 carats in a border of round brilliant cut diamonds, full British hallmarks, size K / 5.25, 4.7g. 

Estimate £600 - £800

A SAPPHIRE AND DIAMOND THREE STONE RING in 14ct yellow gold, set with an oval cut sapphire accented on each side by an old cut diamond, the diamonds all totalling 0.8-1.0 carats, stamped 14K, size L1/2 / 6, 3.3g. 

Estimate £1,000 - £1,500

NO RESERVE - A DIAMOND CLUSTER RING set with a cluster of round brilliant cut and single cut diamonds, no assay marks, size P1/2 / 8, 6.7g. 

Estimate £400 - £600

A VINTAGE EMERALD AND DIAMOND THREE STONE RING in 18ct yellow and white gold, set with an octagonal step cut emerald between two old mine cut diamonds, stamped JG 18CT, size K1/2 / 5.5, 2.2g. 

Estimate £800 - £1,200

A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING in platinum, set with an oval cut sapphire of approximately 8.50 carats in a cluster of old European cut diamonds, the diamonds all totalling 3.0-3.3 carats, to stylised shoulders, full British hallm

Estimate £12,000 - £18,000

A DIAMOND THREE STONE RING in platinum, set with three princess cut diamonds, the diamonds all totalling 1.27 carats, full British hallmarks, size M / 6.25, 6.5g. Accompanied by three gemmological reports from the GIA stating that the diamonds are 0.

Estimate £3,000 - £5,000

A DIAMOND HALF ETERNITY RING in 18ct white gold, set with two rows of round brilliant cut diamonds, stamped 18K, 0.25, size J1/2 / 5, 2.9g. 

Estimate £250 - £350

A DIAMOND RING set with a row of seven single cut diamonds, no assay marks, size N / 6.75, 1.8g. 

Estimate £400 - £600

A DIAMOND CLUSTER RING in 18ct white gold, set with a cluster of round brilliant cut diamonds, the diamonds all totalling 1.80 carats, stamped 750, size N1/2 / 7, 8.6g. 

Estimate £2,000 - £3,000

A SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of approximately 0.25 carats, partial British hallmarks, size L / 5.75, 4.4g. 

Estimate £600 - £800

A VINTAGE SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of approximately 0.66 carats, the shoulders accented by pairs of single cut diamonds, inscribed '1-30-41', stamped 10% IRID PLAT, size L / 5.75, 2.6g. 

Estimate £1,200 - £1,600

NO RESERVE - A DIAMOND SOLITAIRE RING in 18ct white gold, set with a round brilliant cut diamond of 0.31 carats, stamped 750 and 0.31, size O / 7.25, 6.0g. 

Estimate £400 - £600

A RUBY AND DIAMOND CLUSTER RING in 18ct white gold, set with three round cut rubies in clusters of round brilliant cut diamonds, the rubies all totalling 1.49 carats, inscribed R1.49ct d0.296, stamped Au750, size N / 6.

Estimate £800 - £1,200

A DIAMOND BAND RING in platinum, set with three princess cut diamonds, full British hallmarks, size H1/2 / 4, 5.0g.

Estimate £200 - £300

A PINK SAPPHIRE RING in 9ct white gold, set with an oval cut pink sapphire of approximately 0.80 carats, full British hallmarks, size N / 6.75, 3.2g. 

Estimate £200 - £300

AN EMERALD AND DIAMOND CLUSTER RING in platinum, set with a round cut emerald of 0.40 carats in a double border of round brilliant cut diamonds, the band accented by further round brilliant cut diamonds, full British hallmarks, size L / 5.75, 4.6g. 

Estimate £800 - £1,200

AN EMERALD, SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a row of alternating step cut emeralds and sapphires, to a surround of single cut diamonds, stamped 18K, size M1/2 / 6.5, 5.2g. 

Estimate £500 - £700

A RUBY AND DIAMOND BAND RING in 18ct white gold, set with a row of alternating round cut rubies and round brilliant cut diamonds, full British hallmarks, size N / 6.75, 2.9g. 

Estimate £500 - £700