SOLANGE AZAGURY-PARTRIDGE, A YELLOW DIAMOND SUN RING in 18ct yellow gold, designed as a sun set with round brilliant cut yellow diamonds, further diamonds set to the shoulders, SAP maker's mark, full British hallmarks for London 2010, size K / 5.25,

Estimate £800 - £1,200

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

GILBERT ALBERT, AN INTERCHANGEABLE MULTI-GEM DRESS RING, 1970's in 18ct yellow gold, the stylised ring with an interchangeable polished rhodochrosite, amethyst and carnelian sphere, maker's mark, stamped 750, size R1/2 / 9, total weight 15.2g. 

Estimate £1,000 - £1,500

AN ART DECO SAPPHIRE AND DIAMOND RING in platinum, set with a cushion cut sapphire of approximately 2.66 carats, the pierced band set with old cut diamonds totalling 0.6-0.8 carats, no assay marks, size J / 4.75, 4.5g. 

Estimate £5,000 - £7,000

A DIAMOND HALF ETERNITY RING set with a row of baguette cut diamonds between rows of round brilliant cut diamonds, the diamonds totalling 1.07 carats, inscribed D1.07ct, stamped 18K 750, size K1/2 / 5.5, 4.7g. 

Estimate £1,000 - £1,500

A FINE AQUAMARINE AND DIAMOND DRESS RING set with a cushion cut aquamarine of 27.31 carats in a border of old cut diamonds, the diamonds all totalling 2.0-2.2 carats, no assay marks, size O / 7.25, 13.3g. 

Estimate £5,000 - £7,000

LOT WITHDRAWN.

Estimate £10 - £20

TIFFANY & CO., A DIAMOND STREMERICA RING in 18ct white gold, the gold band punctuated by round brilliant cut diamonds, signed Tiffany & Co., full British hallmarks, stamped 750, size V / 10.5, 7.0g. 

Estimate £1,200 - £1,600

CHRISTIAN DIOR, A VINTAGE DIAMOND AND ENAMEL BOMBE RING the bombe face set with sections of round brilliant cut diamonds accented by rows of brown enamel, the diamonds totalling 2.3-2.6 carats, signed Ch. Dior, stamped 18K, size K / 5.25, 13.2g. 

Estimate £5,000 - £7,000

CARTIER, A PLATINUM LOVE RING in platinum, the band punctuated by six screw head motifs, signed Cartier and numbered, Swiss assay marks, British import marks, stamped 950Pt, size K / 5.25, 8.3g. Accompanied by a Cartier jewellery box and certificate

Estimate £800 - £1,200

A DIAMOND CLUSTER RING set with an old cut diamond of approximately 0.96 carats in a border of tapered baguette cut diamonds, stamped 750, size M / 6.25, 4.9g. 

Estimate £1,200 - £1,600

AN ENAMEL AND DIAMOND RING the turquoise enamel band set with round brilliant cut diamonds, stamped 18K, size N / 6.75, 3.2g. 

Estimate £500 - £700

A SAPPHIRE AND DIAMOND CLUSTER RING set with two round cut sapphires in clusters of old cut diamonds, no assay marks, size K / 5.25, 3.9g. 

Estimate £1,200 - £1,600

AN ANTIQUE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a round cut sapphire accented on each side by an old cut diamond, stamped 18, size P1/2 / 8, 5.4g. 

Estimate £1,200 - £1,600

A MODERNIST SAPPHIRE AND DIAMOND RING in 18ct yellow gold, the beaded face set with an octagonal step cut sapphire accented by round brilliant cut diamonds, full British hallmarks for Birmingham 1977, size R1/2 / 9, 7.1g.

Estimate £400 - £600

AN OPAL, ENAMEL AND DIAMOND RING set with a cabochon opal, accented by blue enamel and rose cut diamonds, stamped 14K, size N / 6.75, 6.3g. 

Estimate £300 - £500

A VINTAGE OPAL AND DIAMOND DRESS RING in 18ct yellow gold, set with a marquise shaped cabochon opal in a cluster of round brilliant cut diamonds, the diamonds totalling 0.9-1.0 carat, full British hallmarks for London 1977, size P / 7.75, 13.5g. 

Estimate £800 - £1,200

JENNIFER BLOY, A FINE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING in platinum, set with a cushion cut sapphire of 5.95 carats, accented by round brilliant cut diamonds, engraved 'Toto, I've a feeling we are not in Kansas any more', JB maker's mark, full

Estimate £6,000 - £8,000

A DIAMOND AND SAPPHIRE TARGET RING the oval face set with a cluster of old cut diamonds in a border of calibre cut sapphires, no assay marks, size M1/2 / 6.5, 3.8g. 

Estimate £2,500 - £3,500

CARTIER, A VINTAGE 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, stamped OR ET ACIER, size S1/2 / 9.25, 5.8g.  

Estimate £250 - £350

AN ANTIQUE SOLITAIRE DIAMOND RING set with an old cut diamond of approximately 0.56 carats, the shoulders set with single cut diamonds, no assay marks, size I / 4.25, 2.4g. 

Estimate £300 - £500

AN ANTIQUE EDWARDIAN PEARL, DIAMOND AND RUBY RING in platinum, the oval face set with a pearl accented by old cut diamonds and calibre cut rubies, no assay marks, size J / 4.75, 4.3g. 

Estimate £3,000 - £5,000

AN AMETHYST RING set with an oval cabochon amethyst on a satin finish band, stamped 18K, size M1/2 / 6.5, 2.5g. 

Estimate £300 - £500

JEAN DESPRES, AN ART DECO ONYX DRESS RING in yellow gold and silver, the geometric face set with polished onyx, Jean Despres maker's mark, French assay marks, size N / 6.75, 21.6g. 

Estimate £6,000 - £8,000

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of approximately 3.42 carats in a border of round brilliant cut diamonds, the shoulders set with round brilliant and baguette cut diamonds, stamped 750, size N1/2 / 7, 4.3g. 

Estimate £2,000 - £3,000

AN EMERALD AND DIAMOND THREE STONE RING set with an oval cut emerald accented on each side by a round brilliant cut diamond, stamped 750, size N / 6.75, 3.7g. 

Estimate £200 - £300

AN ANTIQUE PEARL AND DIAMOND NAVETTE RING the navette shaped ring set with a pearl of 6.4mm accented by old cut diamonds, further diamonds set to the shoulders, the diamonds all totalling 1.5-2.0 carats, no assay marks, size K1/2 / 5.5, 4.5g. 

Estimate £3,000 - £5,000

CARTIER, A DIAMOND TRINITY RING comprising three interlocking tricolour rings pave set with round brilliant cut diamonds, signed Cartier and numbered, stamped 750, size L / 5.75, 15.1g. Accompanied by a Cartier jewellery pouch. 

Estimate £15,000 - £20,000

A 5.00 CARAT DIAMOND ENGAGEMENT RING set with a round brilliant cut diamond of approximately 5.00 carats, accented by three rows of round brilliant and baguette cut diamonds, stamped 18K, size I1/2 / 4.5, 7.6g. Accompanied by a gemmological report st

Estimate £50,000 - £70,000

AN EMERALD AND DIAMOND RING set with an oval cut emerald of approximately 1.25 carats in a cluster of round brilliant and tapered baguette cut diamonds, stamped 750, size N1/2 / 7, 3.3g. 

Estimate £1,000 - £1,500

A BALTIC AMBER DRESS RING set with a fancy cabochon amber in a stylised mount, stamped 925, size P1/2 / 8, 21.6g. 

Estimate £300 - £500

A NATURAL SALTWATER SHELL BLISTER PEARL, DIAMOND, EMERALD, SAPPHIRE AND RUBY RING designed as a stylised flower set with a baroque pearl of 17.21mm, accented by round brilliant cut diamonds and round cut sapphires, yellow sapphires, emeralds and rubi

Estimate £600 - £800

GILBERT ALBERT, AN INTERCHANGEABLE MULTI-GEM DRESS RING, 1970'S in 18ct yellow gold, the stylised ring with an interchangeable polished sodalite, dendritic agate, crackled quartz and rose quartz sphere, maker's mark, stamped 750, size L1/2 / 6, total

Estimate £1,500 - £2,500

A DIAMOND CLUSTER RING set with a cluster of round brilliant cut diamonds, the diamonds totalling 0.9-1.1 carats, stamped 18CT, size L1/2 / 6, 3.3g. 

Estimate £1,200 - £1,600

A BOULDER OPAL AND DIAMOND RING in abstract design, set with an oval cabochon boulder opal and a round brilliant cut diamond, stamped 750, size M / 6.25, 6.0g. 

Estimate £400 - £600

A SAPPHIRE AND DIAMOND HALF ETERNITY RING in 18ct yellow and white gold, half set with a row of French cut sapphires and round brilliant cut diamonds, full British hallmarks, size N / 6.75, 3.2g. 

Estimate £700 - £900

MAUBOUSSIN, A DIAMOND CHANCE OF LOVE RING in 18ct yellow gold, set with a round brilliant cut diamond in a border of round brilliant cut diamonds, the bifurcated band set with further diamonds, signed Mauboussin and numbered, stamped Au750, size N1/2

Estimate £600 - £800

A SAPPHIRE AND DIAMOND CLUSTER RING set with a cushion cut sapphire of approximately 4.62 carats in a cluster of round brilliant and princess cut diamonds, the diamonds totalling 1.0-1.1 carats, stamped 750, size N1/2 / 7, 7.0g. 

Estimate £3,000 - £5,000

AN EMERALD AND DIAMOND THREE STONE RING set with a pear cut emerald of approximately 3.69 carats accented on each side by a round brilliant cut diamond, the diamonds totalling 0.9-1.1 carats, stamped 750, sizeN1/2 / 7, 4.9g. 

Estimate £4,000 - £6,000

A 2.24 CARAT SOLITAIRE DIAMOND RING in 18ct yellow gold, set with a round brilliant cut diamond of 2.24 carats, partial British hallmarks, size N1/2 / 7, 4.7g. 

Estimate £4,000 - £6,000

A FINE AQUAMARINE AND DIAMOND RING set with an octagonal step cut aquamarine of 20.08 carats, the shoulders set with old and round brilliant cut diamonds all totalling 1.4-1.6 carats, no assay marks, size P1/2 / 7.5, 12.0g. 

Estimate £4,000 - £6,000

A SAPPHIRE AND DIAMOND TARGET RING set with a round cut diamond of approximately 0.52 carats in a border of calibre cut sapphires, the shoulders set with further diamonds, stamped 18K, size M / 6.25, 3.0g.  

Estimate £800 - £1,200

A SPINEL AND DIAMOND CLUSTER RING set with an oval cut spinel of approximately 1.11 carats in a cluster of old cut diamonds, no assay marks, size N / 6.75, 3.2g. 

Estimate £8,000 - £12,000

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

AN UNTREATED TYPE A JADIETE JADE AND DIAMOND RING set with a marquise shaped cabochon jadeite jade in a border of round brilliant and marquise cut diamonds, the bifurcated band set with further round brilliant cut diamonds, stamped Au750, size P / 7.

Estimate £600 - £800

A CELESTIAL EMERALD RING set with an oval cut emerald of approximately 8.64 carats, the band engraved with man in the moon, sun and star motifs, no assay marks, size P1/2 / 8, 12.3g. 

Estimate £3,500 - £4,500

A BURMA NO HEAT RUBY AND DIAMOND RING set with an oval cut ruby of approximately 5.00 carats, accented by calibre cut rubies and old and round brilliant cut diamonds, stamped 750, size M1/2 / 6.5, 8.4g. Accompanied by a gemmologcal report stating tha

Estimate £4,500 - £5,500

A VINTAGE DIAMOND, ONYX AND RUBY DRESS RING in 18ct white gold, the oval face comprising pave set round brilliant cut diamonds, accented by polished onyx and square step cut rubies, the shoulders set with further diamonds, partial British hallmarks,

Estimate £2,000 - £3,000

A SAPPHIRE AND DIAMOND TOI ET MOI RING set with a round cut sapphire and round brilliant cut diamond of approximately 0.60 carats, stamped 18CT PLAT, size M / 6.25, 4.5g. 

Estimate £2,000 - £3,000

A FINE COLOMBIAN MINOR EMERALD AND DIAMOND THREE STONE RING set with an octagonal step cut emerald of approximately 1.30 carats accented on each side by a round brilliant cut diamond, the diamonds totalling 1.9-2.0 carats, marked indistinctly, size L

Estimate £8,000 - £12,000

A SAPPHIRE AND DIAMOND CLUSTER RING set with a round cut sapphire in a cluster of round brilliant cut diamonds, no assay marks, size N1/2 / 7, 4.6g. 

Estimate £300 - £500

A DIAMOND CLUSTER RING set to the centre with a round brilliant cut diamond of approximately 0.35 carats, in a double cluster of round brilliant cut diamonds, stamped 750, size M1/2 / 6.5, 3.5g. 

Estimate £400 - £600

AN EMERALD ETERNITY RING in 18ct yellow gold, set all around with a row of oval cut emeralds, no assay marks, size M1/2 / 6.5, 2.7g. 

Estimate £600 - £800

A RUBY AND DIAMOND CLUSTER RING set with an oval cut ruby of approximately 8.87 carats in a cluster of round brilliant cut diamonds, inscribed R8.87 D0.61, stamped 750, size M1/2 / 6.5, 7.3g. 

Estimate £2,000 - £3,000

AN ANTIQUE PEARL AND DIAMOND RING in yellow gold, set with three pearls in a border of rose cut diamonds, further rose cut diamonds set to the shoulders, no assay marks, size L / 5.75, 3.3g. 

Estimate £400 - £600

A DIAMOND DRESS RING set with a cluster of baguette and round brilliant cut diamonds, the shoulders set with further baguette and round brilliant cut diamonds, the diamonds all totalling 1.8-1.9 carats, stamped 750, size N1/2 / 7, 5.6g. 

Estimate £2,000 - £3,000

A CEYLON NO HEAT COLOUR CHANGE SAPPHIRE AND DIAMOND RING set with an oval cut colour change sapphire of approximately 4.00 carats in a border of transitional cut diamonds, the diamonds all totalling 0.9-1.0 carats, no assay marks, size M1/2 / 6.5, 7.

Estimate £5,000 - £7,000

AN ANTIQUE DIAMOND SOLITAIRE RING in 18ct white gold, set with an old cut diamond of approximately 0.84 carats, the shoulders set with further old cut diamonds, stamped 18ct, size O1/2 / 7.5, 2.0g. 

Estimate £300 - £500

A DIAMOND CLUSTER RING in 18ct white gold, set with a round brilliant cut diamond of approximately 0.30 carats in a double cluster of round brilliant cut diamonds, the shoulders set with further diamonds, inscribed '26 January 2013', partial British

Estimate £300 - £500

A DIAMOND DRESS RING the pierced face set with a principal round brilliant cut diamond of approximately 0.76 carats accented by round brilliant and single cut diamonds, the diamonds totalling 1.2-1.4 carats, no assay marks, size N / 6.75, 5.0g. 

Estimate £2,500 - £3,500

A PINK SAPPHIRE AND DIAMOND RING set with a cushion cut pink sapphire of approximately 1.30 carats, the stepped shoulders set with old cut diamonds, stamped PLAT, size L1/2 / 6, 3.9g. 

Estimate £2,000 - £3,000

A THREE STONE DIAMOND RING set with three round brilliant cut diamonds, the diamonds all totalling 1.34 carats, inscribed 1/0.74ct 2/0.60ct, stamped 18K, size Q1/2 / 8.25, 4.2g. 

Estimate £1,200 - £1,600

A TANZANITE AND DIAMOND CLUSTER RING set with an oval cut tanzanite in a cluster of round brilliant cut diamonds, stamped 750, size N1/2 / 7 4.4g. 

Estimate £800 - £1,200

A FANCY INTENSE YELLOW DIAMOND RING set with a cushion cut yellow diamond of 1.00 carat in a border of round brilliant cut diamonds, the band set with further diamonds, inscribed 26/0.26ct, stamped 750, size M / 6.25, 3.6g. Accompanied by a GIA repor

Estimate £3,000 - £5,000

A THREE STONE DIAMOND RING in 18ct yellow gold, set with three round brilliant cut diamonds, the diamonds all totalling 2.3-2.5 carats, full British hallmarks, size L1/2 / 6, 4.0g. 4.1g. 

Estimate £2,000 - £3,000

A SAPPHIRE AND DIAMOND RING set with a cushion cut sapphire of approximately 2.77 carats in a border of baguette and round brilliant cut diamonds, the shoulders set with further diamonds, stamped 750, size N1/2 / 7, 5.2g. 

Estimate £1,500 - £2,500

PALOMA PICASSO FOR TIFFANY & CO., A DIAMOND LOVING HEART RING in 18ct white gold, designed as an open heart set with round brilliant cut diamonds, signed Paloma Picasso, signed Tiffany & Co., full British hallmarks, stamped 750, size N / 6.75, 5.0g. 

Estimate £700 - £900

A SOLITAIRE DIAMOND RING set with a round brilliant cut diamond of approximately 0.50 carats, stamped 585, size K / 5.25, 4.0g. 

Estimate £600 - £800

A DIAMOND ENGAGEMENT RING set with a cushion cut diamond of 1.21 carats in a border of round brilliant cut diamonds, the band set with further diamonds, no assay marks, size M1/2 / 6.5, 4.1g. Accompanied by a GIA report stating that the diamond is I

Estimate £2,500 - £3,500

A DIAMOND DRESS RING set to the centre with an old cut diamond of approximately 0.33 carats in a border of baguette cut diamonds, accented by further baguette and round brilliant cut diamonds, stamped 750, size N1/2 / 7, 4.5g. 

Estimate £800 - £1,200

A DIAMOND CLUSTER RING set with a round brilliant cut diamond in a cluster of single cut diamonds, stamped 750, size I1/2 / 4.5, 3.2g. 

Estimate £300 - £500

AN ART DECO DIAMOND RING in white gold, set with an old European cut diamond of approximately 0.58 carats, the stepped shoulders set with single cut diamonds, no assay marks, size K / 5.25, 2.2g. 

Estimate £1,000 - £1,500

PATEK PHILIPPE, A DIAMOND NAUTILUS RING in 18ct rose gold, the openwork ring set with round brilliant cut diamonds, the diamonds totalling 0.5-0.6 carats, signed Patek Philippe, Swiss assay marks, stamped 750, size M / 6.25, 14.2g. 

Estimate £2,000 - £3,000

A SHELL CAMEO RING set with an oval shell cameo carved to depict the bust of a lady, marked indistinctly, size U1/2 / 10.25, 9.3g. 

Estimate £300 - £500