TIFFANY & CO., A 1.04 CARAT SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of 1.04 carats, inscribed 1.04CT, signed Tiffany & Co. and numbered, full British hallmarks, stamped PT950, size I / 4.25, 4.3g. Accompanied by a T

Estimate £2,000 - £3,000

VAN CLEEF & ARPELS, A DIAMOND FRIVOLE RING in 18ct yellow gold, designed as a flower with three heart shaped petals, set with a round brilliant cut diamond, signed VCA and numbered, French assay marks, stamped Au750, size L1/2 / 6, 5.3g. Accompanied

Estimate £1,500 - £2,500

OTTO POULSEN, AN EMERALD AND DIAMOND RING set with three oval cabochon emeralds, punctuated by trios of round brilliant cut diamonds, signed Otto Poulsen, stamped 750, size O / 7.25, 6.5g. 

Estimate £400 - £600

BULGARI, A PARENTESI RING in modular design, signed Bvlgari, Italian assay marks, stamped 750, size L1/2 / 6, 11.3g. 

Estimate £600 - £800

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of 1.18 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling approximately 1.00 carat, inscribed 1.18, full British hallmarks, size L /

Estimate £1,500 - £2,500

KAT FLORENCE, AN UNHEATED RUBY AND DIAMOND RING set with an oval cut ruby of 1.05 carats, the shoulders accented by round brilliant cut diamonds, signed Kat Florence, stamped 18K D0.73, size M1/2 / 6.5, 5.5g. Accompanied by a Kat Florence jewellery b

Estimate £3,000 - £5,000

A DIAMOND DRESS RING in 18ct yellow gold, in a stylised braided design, accented by round brilliant cut diamonds, stamped 750, partial British hallmarks, size O / 7.25, 22.0g. 

Estimate £1,000 - £1,500

A THREE STONE DIAMOND RING set with a marquise cut diamond of 1.07 carats accented on each side by a round brilliant cut diamond, the diamonds totalling 2.10 carats, no assay marks, size M / 6.25, 4.1g. 

Estimate £2,500 - £3,500

AN EMERALD AND DIAMOND RING set with an octagonal step cut emerald of approximately 3.61 carats in a double cluster of round brilliant cut diamonds, the diamonds all totalling 1.5-1.7 carats, stamped 750, size S / 9, 13.4g. 

Estimate £2,000 - £3,000

A DIAMOND AND EMERALD TARGET RING set with a single cut diamond of 0.63 carats in a border of calibre cut emeralds, the shoulders set with further single cut diamonds, stamped 750, size M / 6.25, 5.2g. 

Estimate £1,000 - £1,500

A DIAMOND THREE STONE RING set with a round brilliant cut diamond between a round brilliant cut cognac and yellow diamond, the diamonds all totalling 1.3-1.5 carats, stamped 750, size P1/2 / 8, 8.2g. 

Estimate £800 - £1,200

A BLUE TOPAZ RING set with an octagonal step cut blue topaz of approximately 15.62 carats, stamped 750, size P / 7.5, 12.2g. 

Estimate £400 - £600

AN ANTIQUE DIAMOND CLUSTER RING in 18ct yellow gold, set with a cluster of old cut diamonds, full British hallmarks for London 1901, size Q / 8.25, 3.6g. 

Estimate £500 - £700

AN EMERALD AND DIAMOND RING in 18ct yellow gold, set with three cushion cut emeralds, accented by round brilliant cut diamonds, full British hallmarks, size N1/2 / 7, 7.5g. 

Estimate £500 - £700

AN ART DECO SOLITAIRE DIAMOND RING set with an old cushion cut diamond of 1.14 carats, the shoulders set with single cut diamonds, stamped 5% IRID, size O1/2 / 7.5, 2.5g. 

Estimate £1,800 - £2,200

AN ANTIQUE RUBY AND DIAMOND RING in 18ct yellow gold, set with five oval cut rubies in a border of old cut diamonds, full British hallmarks for Birmingham 1908, size P / 7.75, 4.1g. 

Estimate £350 - £550

AN OPAL AND DIAMOND RING set with a marquise shaped cabochon opal in a cluster of single cut diamonds, stamped 14K, size P1/2 / 8, 7.7g. 

Estimate £350 - £450

AN ANTIQUE OPAL RING in 18ct yellow gold, set with five cabochon opals, full British hallmarks, date letter obscured, size O / 7.25, 5.0g. 

Estimate £250 - £350

A BURMA NO HEAT RUBY AND DIAMOND TOI ET MOI RING set with an oval cut ruby of 1.04 carats and a pear-shaped old cut diamond of 0.53 carats, no assay marks, size N / 6.75, 4.5g. 

Estimate £2,000 - £3,000

A TIGER'S EYE DRESS RING set with an oval cabochon tiger's eye, marked indistinctly, size T / 9.5, 6.0g. 

Estimate £200 - £300

MAUBOUSSIN, A DIAMOND AND MOTHER OF PEARL NADIA RING in 18ct yellow gold, set with a round brilliant cut diamond of approximately 0.60 carats, the shoulders set with carved mother of pearl, signed Mauboussin Paris and numbered, French import marks, s

Estimate £3,000 - £5,000

AN EMERALD RING set with three step cut emeralds, stamped 750, size O1/2 / 7.5, 5.3g. 

Estimate £300 - £500

A SET OF TRICOLOUR STACKING RINGS in tricolour gold, each in beaded design, stamped 18K, white gold size K / 5.25, white gold size K / 5.25, yellow gold size L / 5.75, total weight 16.7g. 

Estimate £1,200 - £1,600

AN EMERALD RING set with an oval cabochon emerald of 3.20 carats, stamped 18K, size M / 6.25, 1.6g. 

Estimate £350 - £550

A 2.00 CARAT EMERALD AND DIAMOND RING set with an octagonal step cut emerald of approximately 2.00 carats in a cluster of round brilliant cut diamonds, the shoulders set with further round brilliant cut diamonds, stamped 750, size E1/2 / 2.75, 4.5g.

Estimate £1,500 - £2,500

A THREE STONE DIAMOND RING set with a princess cut diamond of 1.01 carats accented on each side by a baguette cut diamond, stamped 750, size M1/2 / 6.5, 3.3g. Accompanied by a gemmological report stating that the diamond is E colour and SI2 clarity. 

Estimate £2,500 - £3,500

A VINTAGE CORAL DRESS RING in yellow gold, set with two round cabochon corals accented by foliate decoration, no assay marks, size R / 8.5, 9.3g. 

Estimate £600 - £800

A SET OF THREE DIAMOND STACKING RINGS comprising three undulating tricolour rings accented by round brilliant cut diamonds, no assay marks, size M1/2 / 6.5, 14.9g. 

Estimate £1,000 - £1,500

A SYNTHETIC EMERALD AND DIAMOND RING in 18ct yellow gold, set with a rectangular hydrothermal synthetic emerald between two baguette cut diamonds, full British hallmarks, size N / 6.75, 11.0g. 

Estimate £500 - £700

A GOLDEN PEARL, RUBY AND DIAMOND RING the stylised ring set with a golden pearl of 13.5mm, accented by round cut rubies and round cut diamonds, stamped 750, size O1/2 / 7.5, 22.5g. 

Estimate £800 - £1,200

A TSAVORITE GARNET AND DIAMOND SNAKE RING designed as a coiled snake set throughout with tsavorite garnets, the eyes set with round cut diamonds, the garnets totalling 3.04 carats, no assay marks, size N1/2 / 7, 14.0g. 

Estimate £250 - £350

A FINE UNTREATED EMERALD AND DIAMOND CLUSTER RING set with an octagonal step cut emerald of 5.23 carats in a cluster of round cut diamonds, the shoulders set with further round cut diamonds, no assay marks, size M / 6.25, 8.0g. Accompanied by a gemmo

Estimate £20,000 - £30,000

A SAPPHIRE AND DIAMOND BOMBE RING the bombe face set throughout with marquise cut sapphires and accented by round brilliant cut diamonds, the sapphires totalling all 11.20 carats, the diamonds all totalling 0.60 carats, inscribed D0.60 S11.20, stampe

Estimate £1,500 - £2,500

A SIGNET RING in 18ct yellow gold, the oval face engraved with a family crest, partial British hallmarks, size J1/2 / 5, 9.4g. 

Estimate £500 - £700

A SAPPHIRE BOMBE RING set with round cut sapphires, stamped 750, size O / 7.25, 8.0g. 

Estimate £350 - £450

A VINTAGE DIAMOND DRESS RING in 18ct yellow gold, designed as a fluted knot, accented by sections of single cut diamonds, full British hallmarks for London 1979, size R / 8.5, 7.5g. 

Estimate £400 - £600

A VINTAGE CORAL, ONYX AND DIAMOND RING in 14ct yellow gold, set with carved pieces of black onyx and angel skin coral, accented by rows of round cut diamonds, stamped 14K585, size M / 6.5, 20.1g. 

Estimate £1,000 - £1,500

AN OPAL RING set with an oval cabochon opal, the mount with chased foliate decoration, stamped 9ct, size P / 7.5, 8.8g. 

Estimate £250 - £350

AN UNHEATED RUBY AND DIAMOND RING set with a sugarloaf cabochon ruby of 2.56 carats in a border of round brilliant cut diamonds, further round brilliant cut diamonds set to the shoulders, stamped 14K, size N / 6.75, 5.6g. Accompanied by a gemmologica

Estimate £2,000 - £3,000

AN ANTIQUE SAPPHIRE AND DIAMOND FIVE STONE RING in 18ct yellow gold, set with three round cut sapphires and two old cut diamonds, stamped 18ct, size P1/2 / 7.75, 3.3g. 

Estimate £400 - £600

A HARD STONE INTAGLIO RING set with a hard stone intaglio carved with the profile of a gentleman, stamped 750, size O1/2 / 7.5, 12.5g. 

Estimate £500 - £700

AN OPAL AND DIAMOND RING set with three cabochon opals, accented by pairs of old cut diamonds, no assay marks, size T / 9.5, 6.2g. 

Estimate £300 - £500

A GARNET RING set with an oval cabochon garnet of 5.05 carats, stamped 18K, size M / 6.25, 2.2g. 

Estimate £150 - £250

A 1.00 CARAT SOLITAIRE DIAMOND RING in 18ct white gold, set with a round brilliant cut diamond of 1.00 carat, partial British hallmarks, size M / 6.25, 5.6g. Accompanied by a GIA report stating that the diamond is D colour and SI2 clarity. 

Estimate £2,000 - £3,000

MELLERIO, A SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a round brilliant cut diamond of approximately 0.90 carats, the shoulders set with calibre cut sapphires, signed Mellerio and numbered, French import marks, size L / 5.75, 6.2g. 

Estimate £3,000 - £5,000

AN UNHEATED PURPLE SAPPHIRE AND DIAMOND THREE STONE RING set with an oval cut sapphire of approximately 2.25 carats, accented on each side by a round brilliant cut diamond, stamped 14K585, size N / 6.75, 4.3g. Accompanied by a gemmological report sta

Estimate £700 - £900

AN EMERALD AND DIAMOND DRESS RING set with three round cut emeralds in a border of single cut diamonds, the emeralds all totalling approximately 1.3-1.5 carats, Portuguese assay marks, size O / 7.25, 8.5g.

Estimate £4,000 - £6,000

A SOLITAIRE DIAMOND RING in platinum, set with a round brilliant cut diamond of 1.00 carat on a stylised band set with further round brilliant cut diamonds, full British hallmarks, size I1/2 / 4.5, 4.6g. Accompanied by a gemmological report stating t

Estimate £1,500 - £2,500

A JADEITE JADE AND DIAMOND RING in 18ct yellow gold, set with an oval cabochon jadeite jade in a cluster of round brilliant cut diamonds, full British hallmarks, size R / 8.5, 9.0g. 

Estimate £800 - £1,200

A DIAMOND ENGAGEMENT RING in platinum, set with an emerald cut diamond of approximately 1.92 carats in a border of round brilliant cut diamonds, the band set with further diamonds, partial British hallmarks, size M / 6.25, 4.5g. 

Estimate £3,500 - £4,500

A SAPPHIRE AND DIAMOND THREE STONE RING set with a cushion cut sapphire of approximately 1.10 carats between two trillion cut diamonds, stamped 18K, size M / 6.25, 3.4g. 

Estimate £1,500 - £2,500

H STERN, AN AQUAMARINE AND DIAMOND RING set with an octagonal step cut aquamarine of approximately 6.50 carats, accented on each side with two single cut diamonds, maker's mark, stamped 750, size N1/2 / 7, 5.3g. 

Estimate £1,000 - £1,500

BULGARI, A B.ZERO1 RING with engraved lettering BVLGARI to both sides, signed Bulgari and numbered, stamped 750, size X / 10.5, 7.7g. 

Estimate £400 - £600

CARTIER, A DIAMOND DOUBLE LOVE RING in 18ct white and rose gold, designed as two interlocking bands punctuated by screw head motifs and round brilliant cut diamonds, signed Cartier and numbered, Swiss assay marks, stamped Au750, size K1/2 / 5.5, 6.7g

Estimate £1,500 - £2,500

A 2.01 CARAT FANCY YELLOW DIAMOND DRESS RING set with an emerald cut fancy yellow diamond of 2.01 carats in a cluster of round brilliant cut yellow and white diamonds, accented on each side by baguette cut diamonds, the shoulders set with further bag

Estimate £6,000 - £8,000

A RUBY AND DIAMOND RING invisibly set with three rows of square step cut rubies, accented by pave set round brilliant cut diamonds, the rubies totalling 4.20 carats, the diamonds totalling 0.50 carats, inscribed D0.50 R4.20, stamped 18KT, size N / 6.

Estimate £1,000 - £1,500

A SOLITAIRE DIAMOND ENGAGEMENT RING set with a round brilliant cut diamond of approximately 1.92 carats, the bifurcated band and gallery set with round brilliant cut diamonds, stamped 18K 750, size N / 6.75, 4.4g 

Estimate £2,000 - £3,000

KAT FLORENCE, A RUSSIAN DEMANTOID GARNET AND DIAMOND DRESS RING set with an oval cut demantoid garnet of 1.23 carats in a cluster of round brilliant cut diamonds, the shoulders accented by further round brilliant cut diamonds, the diamonds all totall

Estimate £2,500 - £3,500

AN UNHEATED SAPPHIRE AND DIAMOND RING set with a cushion cut sapphire of approximately 3.84 carats in a cluster of round brilliant cut diamonds, the shoulders set with further round cut diamonds, inscribed 0.51, stamped 14K585, size M1/2 / 6.5, 4.4g.

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND CLUSTER RING set with an octagonal step cut emerald of approximately 1.61 carats in a cluster of round brilliant cut diamonds, inscribed D0.53, stamped 14K585, size N / 6.75, 3.2g. 

Estimate £500 - £700

AN EMERALD AND DIAMOND RING set with an oval cut emerald of approximately 1.45 carats, accented on each side by pairs of round brilliant cut diamonds, stamped 14K585, size N / 6.75, 2.3g. 

Estimate £500 - £700

A RUBY AND DIAMOND DRESS RING in foliate design, set with an oval cut ruby of approximately 1.36 carats, accented by round brilliant cut diamonds, the diamonds totalling 1.8-2.0 carats, stamped 750, size L1/2 / 6, 9.2g. 

Estimate £3,000 - £5,000

AN EMERALD, SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with rows of calibre cut emeralds, sapphires and round brilliant cut diamonds, Sheffield import mark, size N1/2 / 7, 8.6g. 

Estimate £400 - £600

A DIAMOND NAIL RING designed as a bent nail set with round cut diamonds, the diamonds totalling 0.42 carats, no assay marks, size S / 9.25, 3.3g. 

Estimate £500 - £700

A SOLITAIRE DIAMOND ENGAGEMENT RING AND WEDDING BAND in 18ct white gold, the engagement ring set with a round brilliant cut diamond of approximately 0.35 carats, the trifurcated band set with further round brilliant cut diamonds, the fitted wedding b

Estimate £1,200 - £1,600

A FIVE STONE DIAMOND RING set with five round brilliant cut diamonds the diamonds totalling 1.8-2.0 carats, stamped PT950, size M1/2 / 6.5, 6.0g. 

Estimate £2,500 - £3,500

A JADEITE JADE AND DIAMOND CLUSTER RING set with a cabochon jadeite jade in a cluster of round brilliant and old cut diamonds, the diamonds all totalling 1.1-1.2 carats, no assay marks, size L1/2 / 6, 5.3g. 

Estimate £1,200 - £1,600

A BLUE TOPAZ AND DIAMOND RING in 18ct yellow gold, set with a cushion cut blue topaz, the stylised shoulders set with heart, marquise and round brilliant cut diamonds, full British hallmarks, size P / 7.75, 7.6g. 

Estimate £400 - £600

A THREE STONE RUBY AND DIAMOND RING in 18ct white gold, set with an oval cut ruby of approximately 1.89 carats, accented on each side by a pear cut diamond, partial British hallmarks, stamped 750, size M1/2 / 6.5, 3.8g. 

Estimate £1,500 - £2,500

A DIAMOND AND EMERALD DRESS RING set to the centre with an old cut diamond of 0.46 carats, in a concentric border of calibre cut emeralds and single cut diamonds, accented by tapered baguette and further single cut diamonds, no assay marks, size N /

Estimate £1,000 - £1,500

A RECONSTITUTED TURQUOISE AND DIAMOND RING set with a round cabochon reconstituted turquoise within a scrolling border set with round cut diamonds, the diamonds totalling 1.20 carats, no assay marks, size O1/2 / 7.5, 10.5g. 

Estimate £700 - £900

AN EMERALD AND DIAMOND RING in 18ct yellow gold, set with an oval cut emerald, the band set with baguette cut diamonds, full British hallmarks, size N / 6.75, 3.3g. 

Estimate £250 - £350

A SAPPHIRE RING set with a pear shaped cabochon sapphire of 6.50 carats, stamped 18K, size N / 6.75, 2.5g. 

Estimate £200 - £300

AN ANTIQUE VICTORIAN ONYX AND BLACK ENAMEL MOURNING RING in 18ct yellow gold, set with a shield shaped onyx, the band decorated throughout with black enamel, the reverse with a glass locket containing hair work, band engraved 'Mary Cleastry died 8 De

Estimate £500 - £700

A THREE STONE SAPPHIRE AND DIAMOND RING set with an oval cut sapphire of approximately 1.34 carats accented on each side by a round brilliant cut diamond, the shoulders set with round cut diamonds, no assay marks, size N1/2 / 7, 5.0g. 

Estimate £1,200 - £1,600

AN EMERALD RING set with an oval cut emerald of approximately 3.20 carats, stamped 14K585, size O / 7.25, 3.1g. 

Estimate £600 - £800

A SOLITAIRE DIAMOND RING set with a princess cut diamond of approximately 1.40 carats, the band set with a row of round brilliant cut diamonds, stamped 14K, size N / 6.75, 2.6g. 

Estimate £1,200 - £1,600

A SAPPHIRE AND DIAMOND CLUSTER RING set with an oval cut sapphire of approximately 2.90 carats in a cluster of round brilliant cut diamonds, inscribed D0.54, stamped 14K585, size N1/2 / 7, 3.4g. 

Estimate £700 - £900

AN EMERALD AND DIAMOND RING the fluted ring set with an oval cut emerald in a cluster of round brilliant cut diamonds, no assay marks, size J / 4.75, 7.5g. 

Estimate £350 - £450

A SAPPHIRE AND DIAMOND RING set with an oval cut sapphire, accented on each side by trios of round brilliant cut diamonds, no assay marks, size M1/2 / 6.5, 3.3g. 

Estimate £250 - £350

A GREEN SAPPHIRE HALF ETERNITY RING set with a row of five fancy cut sapphires totalling 1.95 carats, stamped 18K, size M1/2 / 6.5, 1.1g. 

Estimate £200 - £300

A DIAMOND DRESS RING pave set throughout with rows of round cut diamonds, the diamonds totalling 7.00 carats, no assay marks, size N / 6.75, 14.2g. 

Estimate £700 - £900

A TANZANITE AND DIAMOND RING set with a pear cut tanzanite of approximately 3.27 carats in a double border of round cut diamonds, the shoulders set with further diamonds, stamped 585, size L1/2 / 6, 4.9g. 

Estimate £300 - £500

A DIAMOND DRESS RING in platinum, set with three clusters of round brilliant cut diamonds, accented by further round brilliant and baguette cut diamonds, full British hallmarks, stamped PT950, size L1/2 / 6, 15.0g. 

Estimate £800 - £1,200

AN EMERALD AND DIAMOND RING set with an octagonal step cut emerald, accented by baguette cut diamonds, stamped 750, size L / 5.75, 7.4g. 

Estimate £350 - £550

BULGARI, A SERPENTI RING in 18ct yellow gold, the coiled ring designed as a snake, comprising a row of tubogas links, signed Bulgari, Italian assay marks, stamped 750, size adjustable, 16.4g. Accompanied by a Bulgari jewellery box.

Estimate £4,000 - £6,000

A SAPPHIRE AND DIAMOND RING in platinum, set with a round cut sapphire of approximately 2.03 carats, the stepped shoulders set with baguette cut diamonds, partial British hallmarks, stamped PT950, size L1/2 / 6, 6.6g. 

Estimate £1,500 - £2,500

A DIAMOND RING set with a round brilliant cut diamond of approximately 1.55 carats, the shoulders set with trios of baguette cut diamonds, stamped PLAT, size N1/2 / 7, 4.7g. 

Estimate £1,000 - £1,500

A SAPPHIRE AND DIAMOND RING set with an oval, pear and marquise cut sapphire in a border of round brilliant cut diamonds, the band set with further diamonds, inscribed 1.00 0.50, stamped 750, size L1/2 / 6, 3.6g.

Estimate £250 - £350

A GARNET FULL ETERNITY RING set all around with a row of cabochon garnets totalling 4.35 carats, stamped 18K, size N / 6.75, 1.5g. 

Estimate £150 - £250

A VINTAGE AMETHYST RING in yellow gold, set with an oval cut amethyst on a tapering band, stamped 10K, size S / 9, 9.2g. 

Estimate £300 - £500

STERLE, AN AQUAMARINE DRESS RING in 18ct yellow gold, set with an oval cut aquamarine of approximately 8.55 carats, the stylised shoulders designed as leaves, signed Sterle Paris and numbered, French assay marks, size J1/2 / 5, 8.0g. 

Estimate £3,000 - £5,000

AN ANTIQUE RUBY, PEARL AND EMERALD RING in 15ct yellow gold, set with cushion cut rubies, seed pearls and step cut emeralds, full British hallmarks for Birmingham 1869, re-sized to size R / 8.5, 2.3g. 

Estimate £200 - £300

NO RESERVE - A DIAMOND HALF ETERNITY RING half set with a row of round brilliant cut diamonds, inscribed 0.20, no assay marks, size K1/2 / 5.5, 3.0g. 

Estimate £200 - £300

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a cushion cut sapphire between two round brilliant cut diamonds, full British hallmarks, size L1/2 / 6, 4.3g. 

Estimate £250 - £350

AN EMERALD AND DIAMOND RING set with a round brilliant cut diamond in a cluster of oval cut emeralds and further round brilliant cut diamonds, stamped 18ct, size J1/2 / 5, 5.6g. 

Estimate £350 - £450

A SPINEL HALF ETERNITY RING set with a row of seven oval cut spinels totalling 1.35 carats, stamped 18K, size N / 6.75, 0.9g. 

Estimate £150 - £250

A SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a round brilliant cut diamond between two cushion cut sapphires, full British hallmarks, size U / 10, 6.7g. 

Estimate £300 - £500

AN AMETHYST AND DIAMOND RING in 18ct yellow gold, set with a round cut amethyst between trios of round brilliant cut diamonds, full British hallmarks, size S / 9.25, 6.5g. 

Estimate £300 - £500

A VINTAGE DIAMOND RING set with a stylised cluster of round brilliant and baguette cut diamonds, no assay marks, size K / 5.25, 10.2g. 

Estimate £800 - £1,200

AN EMERALD AND DIAMOND RING set with three octagonal step cut emeralds and two baguette cut diamonds, stamped WG, size N / 6.75, 4.3g. 

Estimate £250 - £350

A SAPPHIRE AND DIAMOND CLUSTER RING set with a pear cut sapphire of approximately 2.70 carats in a cluster of round brilliant cut diamonds, on a bifurcated band, inscribed D0.50, stamped 14K585, size N1/2 / 7, 3.2g. 

Estimate £700 - £900

A SOLITAIRE DIAMOND RING set with a princess cut diamond of 0.55 carats, the shoulders set with two rows of round brilliant cut diamonds, the diamonds all totalling 0.8-0.9 carats, stamped 18K 750, size J1/2 / 5, 4.6g. 

Estimate £1,000 - £1,500

AN AQUAMARINE AND DIAMOND DRESS RING set with an oval cut aquamarine of 9.67 carats, the shoulders set with round brilliant cut diamonds, stamped 750, size N / 6.75, 7.6g. 

Estimate £2,500 - £3,500

AN AMETHYST RING set with an oval cabochon amethyst of 3.25 carats, stamped 18K, size L1/2 / 6, 1.8g. 

Estimate £150 - £250

FENTON, AN EMERALD AND DIAMOND RING set with three octagonal step cut emeralds in borders of round brilliant cut diamonds, inscribed 0.25ct TW/54, signed Fenton, stamped 750, size L / 5.75, 4.2g. 

Estimate £300 - £500

A SOLITAIRE DIAMOND RING set with a princess cut diamond of 0.53 carats, the shoulders set with round brilliant cut diamonds, stamped 750, size N / 6.75, 2.8g. Accompanied by a GIA report stating the diamond I colour and VVS2 clarity. 

Estimate £800 - £1,200