A WATERMELON TOURMALINE AND DIAMOND RING set with an octagonal step cut watermelon tourmaline of 1.82 carats in a border of round brilliant cut diamonds, further diamonds set to the shoulders, stamped 18K, size M1/2 / 6.5, 4.3g. 

Estimate £800 - £1,200

TIFFANY & CO., A GOLD 1837 BAND RING, 1997 the convex band engraved T & CO. 1837, signed Tiffany & Co. 1997, stamped 750, size J1/2 / 5, 6.7g. 

Estimate £400 - £600

A RUBY AND DIAMOND CLUSTER RING set with a cushion cut ruby of approximately 1.00 carat in a cluster of old cut diamonds, the diamonds all totalling 3.2-3.4 carats, no assay marks, size I1/2 / 4.5, 7.8g. 

Estimate £3,500 - £5,500

A TANZANITE AND DIAMOND RING in 18ct yellow gold, set with an octagonal step cut tanzanite of approximately 4.82 carats, accented by round brilliant cut diamonds, full British hallmarks, size O1/2 / 7.5, 7.7g. 

Estimate £400 - £600

NO RESERVE - AN ANTIQUE OPALINE GLASS AND GREEN PASTE RING in yellow gold, set with a round green paste in a cluster of round cabochon opaline glass, accented by further green paste stones, partially obscured British hallmarks, size I1/2 / 4.5, 1.3g.

Estimate £150 - £250

AN INDIAN DIAMOND AND ENAMEL RING set with a flat cut diamond in a border of green and white enamel, accented by further rose cut diamonds, no assay marks, size M / 6.25, 6.0g. 

Estimate £200 - £300

A DIAMOND CLUSTER RING set with a cluster of old cut diamonds, the shoulders set with further diamonds, the diamonds all totalling 1.2-1.4 carats, no assay marks, size N / 6.75, 4.5g.

Estimate £1,000 - £1,500

AN ART DECO SAPPHIRE AND DIAMOND RING in platinum, set with a cushion cut sapphire of approximately 1.40 carats, accented by single cut diamonds, stamped P, size J / 4.75, 3.0g. 

Estimate £2,500 - £3,500

AN ANTIQUE DIAMOND FIVE STONE RING set with a graduating row of old cut diamonds, accented by rose cut diamonds, stamped 18CT, size N1/2 / 7, 4.6g. 

Estimate £600 - £800

A DIAMOND DRESS RING the geometric ring set with three principal old cut diamonds, accented by a border of single cut diamonds, no assay marks, size L1/2 / 6, 3.6g. 

Estimate £800 - £1,200

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

Estimate £500 - £700

AN AQUAMARINE AND DIAMOND DRESS RING set with an octagonal step cut aquamarine of approximately 3.25 carats, accented on each side by pairs of princess cut diamonds, stamped 750, size M1/2 / 6.5, 4.7g. 

Estimate £1,000 - £1,500

A DIAMOND CLUSTER RING set with a cluster of round brilliant cut diamonds, the diamonds all totalling 0.8-0.9 carats, partial British hallmarks, size O / 7.25, 4.4g. 

Estimate £400 - £600

A SAPPHIRE, RUBY AND DIAMOND REVERSIBLE RING the central band set to one half with a row of square step cut sapphires and to the other half with square step cut rubies, flanked by two articulated rows of round brilliant cut diamonds, no assay marks,

Estimate £300 - £500

A YELLOW DIAMOND HALO RING set with an oval cut diamond of 1.01 carats in a concentric border of round brilliant cut yellow and white diamonds, the accenting diamonds all totalling 0.45 carats, stamped 750, size N / 6.75, 4.4g. 

Estimate £2,200 - £2,500

A SOLITAIRE DIAMOND RING in platinum, set with a princess cut diamond of 1.00 carat, the shoulders set with round brilliant cut diamonds, partial British hallmarks, size M1/2 / 6.5, 3.0g. Accompanied by a 77 Diamonds jewellery box and presentation bo

Estimate £1,200 - £1,600

A DIAMOND FULL ETERNITY RING in 18ct white gold, set all around with a row of princess cut diamonds, the diamonds all totalling 2.0-2.5 carats, partial British hallmarks, size J1/2 / 5, 2.3g. 

Estimate £800 - £1,200

AN ANTIQUE DIAMOND SNAKE RING in yellow gold and silver, designed as a coiled snake set with rose cut diamonds, no assay marks, size O / 7.25, 3.7g. 

Estimate £500 - £700

AN ANTIQUE GEORGIAN DIAMOND RING, CIRCA 1776, in yellow gold and silver, set with rose cut diamonds, inscribed 'The Lord with me C.D. 7 April 1776', no assay marks, size R / 8.75, 2.7g. 

Estimate £300 - £500

AN ANTIQUE EMERALD AND DIAMOND RING in yellow gold and silver, set with a row of round cut emeralds totalling 1.3-1.5 carats, accented by two rows of old cut diamonds totalling 1.0-1.2 carats, no assay marks, size L / 5.75, 7.3g. Accompanied by an an

Estimate £3,000 - £5,000

AN ANTIQUE DIAMOND SNAKE RING, 1871, in 18ct yellow gold, designed as a coiled snake, the head and eyes set with old and rose cut diamonds, full British hallmarks for Birmingham 1871, size O1/2 / 7.5, 5.7g. 

Estimate £500 - £700

AN ANTIQUE VICTORIAN DIAMOND GYPSY RING, 1893, in 18ct yellow gold, set with an old cut diamond within a star shaped border, full British hallmarks for Chester 1893, size O1/2 / 7.5, 2.9g. 

Estimate £300 - £500

AN ANCIENT GOLD SNAKE RING in yellow gold, designed as a coiled snake, no assay marks, size S / 9.25, 5.2g. 

Estimate £1,200 - £1,600

BULGARI, A CERAMIC B.ZERO1 RING in 18ct rose gold, the band engraved BVLGARI BVLGARI to both sides, the centre comprising ceramic, signed Bvlgari, Italian assay marks, size K1/2 / 5.5, 9.4g. 

Estimate £600 - £800

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire in a border of round cut diamonds, the bifurcated shoulders set with further diamonds, no assay marks, size N1/2 / 7, 6.0g. 

Estimate £300 - £500

A SAPPHIRE AND DIAMOND RING the open ring set with a pear cut sapphire of approximately 1.25 carats and a pear cut diamond of approximately 0.33 carats, stamped 18K, size M1/2 / 6.5, 3.5g. 

Estimate £1,500 - £2,500

AN EMERALD AND DIAMOND RING in 18ct yellow gold, set with an oval cut emerald in a halo of single cut diamonds, the band set with further diamonds, partial British hallmarks, size N1/2 / 7, 4.6g. 

Estimate £250 - £350

A BLUE TOPAZ AND DIAMOND RING in 9ct yellow gold, set with a round cut blue topaz accented by round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 3.5g. 

Estimate £300 - £500

A COLLECTION OF DIAMOND RINGS comprising a diamond half eternity ring in 9ct white gold, the diamonds totalling 0.4-0.5 carats, partial British hallmarks, size L1/2 / 6, 2.6g, a diamond halo ring in 9ct white gold, partial British hallmarks, size O /

Estimate £300 - £500

AN EMERALD AND DIAMOND RING in white gold, set with an octagonal step cut emerald of 0.64 carats, the shoulders set with round brilliant cut diamonds, marked indistinctly, size K / 5.25, 4.2g. 

Estimate £400 - £600

A PEARL AND DIAMOND DRESS RING set with a pearl of 13.8mm and a round brilliant cut diamond, accented by single cut diamonds, signed VITZTHUM, stamped 750, size V / 10.5, 10.2g. 

Estimate £1,000 - £1,500

TIFFANY & CO., A DIAMOND T TRUE NARROW RING the openwork band designed as a row of T motifs, set throughout with round brilliant cut diamonds, signed Tiffany & Co., stamped Au750, size J / 4.75, 2.9g.

Estimate £1,500 - £2,500

BULGARI, A PAIR OF DIAMOND DIVA'S DREAM DROP EARRINGS in 18ct white gold, each comprising a row of fan shaped drops pave set with round brilliant cut diamonds totalling 2.2-2.4 carats, signed Bulgari, Italian assay marks, stamped Au750, 3.7cm, 17.2g.

Estimate £6,000 - £8,000

A RUBY FIVE STONE RING set with five cushion cut rubies, accented by round cut diamonds, no assay marks, size O1/2 / 7.5, 4.0g. 

Estimate £400 - £600

A COLLECTION OF THREE ANTIQUE GEMSET RINGS comprising an antique Victorian pearl buckle ring in 9ct yellow gold, partially obscured British hallmarks, size I / 4.25, 1.5g, a garnet ring, no assay marks, size M1/2 / 6.5, 1.8g, a turquoise half eternit

Estimate £400 - £600

AN OPAL AND DIAMOND RING set with a cabochon opal of approximately 5.04 carats in a border of round cut diamonds, the diamonds all totalling 1.8-2.0 carats, no assay marks, size N / 6.75, 5.3g. 

Estimate £6,000 - £8,000

TWO DIAMOND RINGS comprising a seven stone diamond ring in 9ct white gold, full British hallmarks, size N1/2 / 7, 2.3g, together with a diamond dress ring in 9ct white gold, full British hallmarks, size N1/2 / 7, 2.3g.

Estimate £300 - £500

A DIAMOND GIARDINETTO RING in white gold, designed as a bouquet of flowers in a vase, set throughout with old cut diamonds, the diamonds all totalling 1.8-2.0 carats, no assay marks, size N1/2 / 7, 7.0g.

Estimate £2,000 - £3,000

A SOLITAIRE DIAMOND RING AND DIAMOND BAND RING comprising a solitaire diamond ring in platinum, set with a round brilliant cut diamond of approximately 0.38 carats, full British hallmarks, size I / 4.25, 3.1g, together with a band ring in platinum, s

Estimate £300 - £500

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 BLUE TOPAZ AND DIAMOND RING in 9ct yellow gold, set with an oval cut blue topaz accented by round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 3.0g. 

Estimate £200 - £300

A SOLITAIRE DIAMOND RING in 18ct yellow gold, set with a round brilliant cut diamond of 1.15 carats, inscribed 1.15, partial British hallmarks, size L1/2 / 6, 4.0g. 

Estimate £300 - £500

NO RESERVE - A RUBY AND DIAMOND RING set with an oval cut ruby accented by trios of round brilliant cut diamonds, stamped 750, size M / 6.25, 2.1g. 

Estimate £100 - £150

A DIAMOND RING set with an old cut diamond in a border of tapered baguette and round cut diamonds, the shoulders set with further diamonds, no assay marks, size N1/2 / 7, 3.5g. 

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND DRESS RING set with a cushion cut sapphire between two pear cut sapphires, accented by old cut diamonds, no assay marks, size O1/2 / 7.5, 2.7g. 

Estimate £800 - £1,200

A RUBELLITE TOURMALINE AND DIAMOND RING set with an octagonal step cut rubellite tourmaline of approximately 1.88 carats, the bifurcated shoulders set with round brilliant cut diamonds, stamped 18K, size L1/2 / 6, 4.0g.

Estimate £1,000 - £1,500

A RUBY AND DIAMOND RING set with three oval cut rubies, accented by a border of round brilliant cut diamonds, stamped 18K, size M / 6.25, 5.4g. 

Estimate £350 - £550

A BLUE TOPAZ AND DIAMOND RING in 9ct yellow gold, set with oval and round cut blue topaz accented by round brilliant cut diamonds, partial British hallmarks, size O / 7.25, 2.4g. 

Estimate £250 - £350

A SAPPHIRE AND DIAMOND DRESS RING set with three oval cut sapphires accented by single cut diamonds, no assay marks, size J1/2 / 5, 6.8g. 

Estimate £400 - £600

A TSAVORITE GARNET AND DIAMOND RING in 9ct yellow gold, set with a round cut tsavorite garnet accented by round brilliant cut diamonds, partial British hallmarks, size O1/2 / 7.5, 2.4g. 

Estimate £250 - £350

NO RESERVE - A SAPPHIRE AND DIAMOND RING set with a round cut sapphire between two old cut diamonds, accented by single cut diamonds, stamped 18CT PLAT size I / 4.25, 2.1g. 

Estimate £200 - £300

TWO DIAMOND RINGS comprising a solitaire diamond ring in 14ct white gold, full British hallmarks, size O1/2 / 7.5, 3.9g, together with an Art Deco solitaire diamond ring, stamped 18CT PLAT, size M1/2 / 6.5, 2.5g. 

Estimate £400 - £600

NO RESERVE - A SAPPHIRE, ENAMEL AND EMERALD RING the bombe ring set with an oval cabochon sapphire accented by round cut emeralds, the ring decorated throughout with enamel, stamped 925, size Q / 8, 12.4g. Please note that the sapphire has been dyed

Estimate £100 - £150

NO RESERVE - A MORGANITE AND DIAMOND RING in 9ct yellow gold, set with an oval cut morganite, the shoulders set with baguette cut diamonds, stamped 9K, partial British hallmarks, size P1/2 / 8, 2.7g. 

Estimate £200 - £300

TWO ANTIQUE GEMSET RINGS comprising a pearl and diamond band ring, no assay marks, size L / 5.75, 2.3g, together with a ruby and pearl ring in 15ct yellow gold, partially obscured British hallmarks, size J1/2 / 5, 2.1g.  

Estimate £400 - £600

A PEARL CLUSTER RING in 9ct yellow gold, set with a cluster of pearls, partial British hallmarks, size N1/2 / 7, 2.7g. 

Estimate £150 - £250

A MULTI GEM DEAREST ACROSTIC RING in 9ct yellow gold, set with a round cut diamond, emerald, amethyst, ruby, sapphire and green tourmaline spelling 'dearest', partial British hallmarks, size O / 7.25, 1.3g. 

Estimate £100 - £150

AN EMERALD AND DIAMOND HALF ETERNITY RING in 18ct yellow gold, half set with a row of rectangular step cut emeralds and round brilliant cut diamonds, full British hallmarks for London 1988, size O1/2 / 7.5, 4.6g.

Estimate £300 - £500

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

Estimate £2,000 - £3,000

AN ANTIQUE VICTORIAN SAPPHIRE AND DIAMOND BELT RING, 1894, in 18ct yellow gold, designed as a belt buckle set with round cut sapphires and an old cut diamond, full British hallmarks for Birmingham 1894, size R / 8.75, 3.5g.

Estimate £400 - £600

A CHINESE GOLD RING in yellow gold, engraved with Chinese characters, Chinese assay marks, size S1/2 / 9.5, 9.1g. 

Estimate £800 - £1,200

AN AMETHYST AND DIAMOND SWEETHEART RING in 9ct white gold, set with a pear cut amethyst in a cluster of round brilliant cut diamonds, surmounted by a bow set with further diamonds, partial British hallmarks, size M1/2 / 6.5, 3.1g. 

Estimate £300 - £500

A COLLECTION OF RINGS comprising a pearl and diamond ring, stamped 750, size L1/2 / 6, 3.7g, an antique diamond horseshoe ring, no assay marks, size M1/2 / 6.5, 3.0g, an antique emerald and diamond ring in 18ct yellow gold, partially obscured British

Estimate £400 - £600

A DIAMOND AND OBSIDIAN SNOWFLAKE RING the body carved from a piece of snowflake obsidian, with an applied snowflake motif set with diamonds, stamped 14K, size L / 5.75, 5.1g.

Estimate £700 - £900

A CITRINE AND DIAMOND DRESS RING set with a hexagonal step cut citrine of approximately 1.19 carats in a border of round brilliant cut diamonds, further diamonds set to the bifurcated shoulders, stamped 18K, size L1/2 / 6, 3.5g. 

Estimate £700 - £900

A JADEITE JADE RING set with a cushion shaped jadeite jade within a beaded border, no assay marks, size M / 6.25, 6.0g. 

Estimate £1,000 - £1,500

A RHODOLITE GARNET AND DIAMOND CLUSTER RING in 9ct yellow gold, set with a cluster of oval cut rhodolite garnets and round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 3.5g. 

Estimate £300 - £500

A SAPPHIRE, RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut ruby and an oval cut sapphire in a cluster of round cut diamonds, full British hallmarks, size L / 5.75, 4.5g. 

Estimate £600 - £800

TIFFANY & CO., A GOLD BAND RING in 18ct yellow gold, comprising a wide band, signed Tiffany & Co., full British hallmarks, stamped 750, size S / 9.25, 10.6g. 

Estimate £800 - £1,200

A GARNET AND PEARL CLUSTER RING in 9ct rose gold, set with an oval cabochon garnet in a cluster of pearls, partial British hallmarks, size M1/2 / 6.5, 1.9g. 

Estimate £100 - £150

A DIAMOND AND EMERALD RING set with a round brilliant cut diamond accented by single cut diamonds, accented on each side by square step cut emeralds no assay marks, size Q1/2 / 8.5, 9.1g.

Estimate £500 - £700

A COLLECTION OF THREE RINGS comprising a solitaire diamond ring, stamped 18CT&PLAT, size M / 6.25, 2.6g, a diamond cluster ring in 9ct yellow gold, inscribed .25, partial British hallmarks, size O / 7.25, 1.8g, a sapphire and diamond ring in 9ct yell

Estimate £300 - £500

A PINK SAPPHIRE AND DIAMOND RING in 18ct white gold, set with an oval cut pink sapphire of 2.10 carats, the shoulders set with baguette cut diamonds, partial British hallmarks, size M / 6.25, 3.7g. 

Estimate £300 - £500