TIFFANY & CO., A DIAMOND ETOILE RING the band set with staggered round brilliant cut diamonds, signed T&CO, stamped 750 PT950, size M / 6.25, 4.7g. RRP: £2,150

Estimate £400 - £600

A RUBY AND DIAMOND FULL ETERNITY RING set all around with a row of alternating round cut rubies and round brilliant cut diamonds, the diamonds all totalling 0.8-1.0 carats, stamped 750, size O1/2 / 7.5, 7.1g. 

Estimate £800 - £1,200

FABERGE, A FULL DIAMOND ETERNITY RING in 18ct white gold, set all around with a row of round cut diamonds, set to the inside with a round cut ruby, signed Faberge and numbered, partial British hallmarks, size M1/2 / 6.5, 3.8g. Accompanied by a Faberg

Estimate £1,000 - £1,500

A YELLOW SAPPHIRE AND DIAMOND RING set with an oval cut yellow sapphire of approximately 3.09 carats, the shoulders set with round brilliant cut diamonds, no assay marks, size M1/2 / 6.5, 5.9g. 

Estimate £1,800 - £2,200

AN EMERALD AND DIAMOND CLUSTER RING set with a square step cut emerald in a cluster of old European cut diamonds, no assay marks, size H / 3.75, 3.0g. 

Estimate £1,500 - £2,500

A RUBY AND DIAMOND CLUSTER RING set with a cushion cut ruby of approximately 0.96 carats in a cluster of round brilliant cut diamonds, the scrolling band set with further round cut diamonds, no assay marks, size M / 6.25, 6.7g. 

Estimate £1,500 - £2,500

A PEARL AND DIAMOND RING set with a pearl of 13.0mm, accented by rows of round brilliant cut diamonds, inscribed 0.27, stamped K18, size L1/2 / 6, 12.7g. 

Estimate £700 - £900

AN ANTIQUE DIAMOND LOCKET RING set with a glass covered locket panel in a border of old cut diamonds, inscribed 'Joanna Gibbs Ob 25 Nov 1823 A 46', no assay marks, size M1/2 / 6.5, 4.6g. 

Estimate £1,200 - £1,600

AN ANTIQUE PINK SAPPHIRE CLUSTER RING in yellow gold, set with a cluster of round and cushion cut pink sapphires, no assay marks, size N1/2 / 7, 2.9g. 

Estimate £600 - £800

AN ANTIQUE MOONSTONE AND DIAMOND SWEETHEART RING in yellow gold and silver, set with two heart shaped cabochon moonstones in a cluster of rose cut diamonds, no assay marks, size O1/2 / 7.5, 5.4g. 

Estimate £1,500 - £2,500

A SOLITAIRE DIAMOND RING in 18ct yellow and white gold, set with a round brilliant cut diamond of approximately 0.75 carats, full British hallmarks, size K / 5.25, 3.4g. 

Estimate £600 - £800

AN ART DECO DIAMOND RING in platinum, set with an old cut diamond of 3.54 carats, the stepped shoulders set with baguette cut diamonds, stamped PLATINUM, size O / 7.25, 4.1g. Accompanied by a gemmological report stating the central diamond is H colou

Estimate £15,000 - £20,000

AN OPAL AND DIAMOND CLUSTER RING set with an oval cabochon opal in a cluster of round brilliant and baguette cut diamonds, no assay marks, size O1/2 / 7.5, 7.3g. 

Estimate £800 - £1,200

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

A RETRO RUBY AND DIAMOND DRESS RING in white gold, set with an old European cut diamond of approximately 0.60 carats in a border of carre cut diamonds and round cut rubies, accented by a row of rectangular step cut rubies, on a trifurcated band, no a

Estimate £1,800 - £2,200

A CITRINE DRESS RING set with an octagoal step cut citrine of approximately 11.83 carats, no assay marks, size N / 6.75, 8.1g. 

Estimate £500 - £700

A TURQUOISE ETERNITY RING set all around with two rows of round cabochon turquoise, stamped 18K, size M / 6.25, 2.2g. 

Estimate £300 - £500

A VINTAGE NATURAL ORANGE JADEITE JADE AND DIAMOND RING, 1970S in 14ct yellow gold, set with an oval cabochon jadeite jade, the hammered mount accented by round cut diamonds, stamped 14K 585, size M / 6.25, 20.0g. Accompanied by a GIA report from 1978

Estimate £1,200 - £1,600

AN ANTIQUE NATURAL SALTWATER PEARL AND DIAMOND RING in yellow gold, set with a pearl of 5.7mm accented by rose cut diamonds, no assay marks, size N1/2 / 7, 3.0g. Accompanied by a facsimile gemmological report stating the pearl is of natural saltwater

Estimate £1,000 - £1,500

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut emerald in a cluster of round brilliant cut diamonds, partial British hallmarks, size N1/2 / 7, 4.0g. 

Estimate £1,000 - £1,500

AN ANTIQUE PEARL AND ENAMEL RING in yellow gold, the domed oval face set with pearls accented by sections of blue enamel, no assay marks, size N1/2 / 7, 8.1g. 

Estimate £600 - £800

AN ORANGE AND YELLOW SAPPHIRE ROSE RING designed as a rose set with various shades of round cut orange and yellow sapphires, stamped 750, size Q / 8.25, 31.3g. 

Estimate £1,200 - £1,600

A TANZANITE AND DIAMOND CLUSTER RING set with an oval cut tanzanite of 3.00 carats in a cluster of round brilliant and tapered baguette cut diamonds, the diamonds all totalling 0.82 carats, stamped 750, size M / 6.25, 4.3g. 

Estimate £1,500 - £2,500

A DIAMOND FULL ETERNITY RING the band set with five rows of round brilliant cut diamonds, all totalling 5.5-6.0 carats, no assay marks, size L / 5.5, 15.4g.

Estimate £1,000 - £1,500

A CHALCEDONY, DIAMOND AND ONYX RING set with an oval cabochon chalcedony within a border of polished onyx, accented by round cut diamonds, on a bifurcated band, inscribed 7.47 D035, stamped 18K 750, size O / 7.25, 11.5g. 

Estimate £600 - £800

A BURMA NO HEAT RUBY CLUSTER RING set with an oval cut ruby in a cluster of square step cut rubies, the rubies all totalling 8.5-9.0 carats, on a bifurcated band, no assay marks, size L / 5.75, 5.2g. Accompanied by a gemmological report stating that

Estimate £2,000 - £3,000

A HARDSTONE INTAGLIO RING in 14ct yellow gold, set with a blue hardstone intaglio carved to depict a coat of arms, inscribed 1971, stamped 585, size O1/2 / 7.5, 4.0g. 

Estimate £700 - £900

AN ANTIQUE COLOMBIAN EMERALD AND DIAMOND RING in yellow gold and silver, set with an octagonal step cut emerald of approximately 2.11 carats over a ground of old and step cut diamonds, on a later band, size J1/2 / 5, 9.3g. With a gemmological verbal

Estimate £1,800 - £2,200

A DIAMOND CLUSTER RING set with a cluster of princess, round brilliant and baguette cut diamonds, within a double border of round brilliant cut diamonds, the band half set with further diamonds, the diamonds all totalling 1.25 carats, inscribed 1.25,

Estimate £800 - £1,200

A PEARL AND DIAMOND TOI ET MOI RING set with a black and white pearl of 8.8mm respectively, accented by baguette cut diamonds, marked indistinctly, size L / 5.75, 6.6g. 

Estimate £250 - £350

AN EXCEPTIONAL FIRE OPAL AND DIAMOND CLUSTER RING in platinum, set with an oval cabochon fire opal of approximately 21.10 carats, in a cluster of round brilliant and pear cut diamonds, the diamonds all totalling 2.6-2.8 carats, stamped Pt900, size L1

Estimate £5,000 - £7,000

A FINE 3.09 CARAT G COLOUR DIAMOND RING set with an emerald cut diamond of approximately 3.09 carats, accented on each side by a tapered baguette cut diamond, no assay marks, size N1/2 / 7, 3.9g. Accompanied by a GIA report stating the diamond is G c

Estimate £20,000 - £25,000

BULGARI, A DIAMOND DRESS RING in 18ct yellow gold, the face pave set with round brilliant cut diamonds, the diamonds all totalling 1.8-2.2 carats, signed Bulgari, Italian assay marks, stamped 750, size N1/2 / 7, 12.8g. 

Estimate £6,000 - £8,000

A LAVENDER JADE, ONYX, DIAMOND AND RUBY SALAMANDER DRESS RING in 18ct white gold, set with a polished lavender jadeite jade and a polished onyx with two applied salamander motifs pave set with round brilliant cut diamonds, the eyes set with round cut

Estimate £3,000 - £5,000

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

A GOLD LION RING in 9ct yellow gold, designed as a lion head, partial British hallmarks, size X / 11.5, 32.8g. 

Estimate £1,000 - £1,500

A VINTAGE RUBY AND DIAMOND RING, 1950S in platinum, of circular bombe design, set with round cut rubies totalling 1.8-2.2 carats and round cut diamonds totalling 1.2-1.5 carats, no assay marks, size L / 5.75, 7.4g.

Estimate £2,000 - £3,000

AN OPAL AND DIAMOND CLUSTER RING set with a pear shaped cabochon opal in a cluster of round brilliant cut diamonds, stamped 18CT, size Q1/2 / 8.5, 9.9g. 

Estimate £1,000 - £1,500

AN AQUAMARINE AND DIAMOND RING set with a round cut aquamarine of approximately 5.31 carats accented by single cut diamonds, no assay marks, size N1/2 / 7, 6.6g. 

Estimate £1,500 - £2,500

A SOLITAIRE DIAMOND RING set with a round brilliant cut diamond of approximately 0.75 carats, no assay marks, size N / 6.75, 3.5g. 

Estimate £600 - £800

A SARDONYX INTAGLIO RING set with an oval sardonyx intaglio carved to depict a coat of arms, stamped 585, size N / 6.75, 4.6g. 

Estimate £800 - £1,200

AN ANTIQUE RUBY AND DIAMOND RING in 18ct yellow gold, set with round cut rubies and rose cut diamonds in star shaped borders, full British hallmarks for Chester 1916, size O1/2 / 7.5, 2.1g. 

Estimate £300 - £500

A RUBY AND DIAMOND OWL RING the head designed as the face of an owl set with rose cut diamonds, the eyes set with round cut rubies, no assay marks, size N / 6.75, 4.2g. 

Estimate £400 - £600

A RUBY AND DIAMOND CLUSTER RING set with a round cut ruby of approximately 0.69 carats in a cluster of round cut diamonds, stamped 18CT PLAT, size N / 6.75, 3.4g. 

Estimate £500 - £700

A RUBY AND DIAMOND CLUSTER RING set with an oval cut ruby of 1.87 carats in a cluster of round brilliant and tapered baguette cut diamonds, the diamonds all totalling 1.10 carats, stamped 750, size O / 7.25, 4.0g. 

Estimate £2,000 - £3,000

AN EMERALD, ENAMEL AND DIAMOND RING set with an oval cut emerald in a border of white enamel, the band accented by round cut diamonds, stamped 18K, size L / 5.75, 2.0g. 

Estimate £300 - £500

A SAPPHIRE ETERNITY RING set all around a row of round cabochon sapphires, stamped 18K, size N1/2 / 7, 1.8g.

Estimate £200 - £300

A RUBY AND DIAMOND DRESS RING in 18ct yellow gold, set with a row of round and cushion cut rubies accented by round brilliant cut diamonds, the diamonds all totalling 1.0-1.1 carats, full British hallmarks for Birmingham 2002, size O1/2 / 7.5, 6.1g. 

Estimate £500 - £700

A SAPPHIRE AND DIAMOND RING set with three clusters of French cut sapphires in borders of round brilliant cut diamonds, the sapphires all totalling 1.25 carats, the diamonds all totalling 0.50, stamped 750, size U / 10.25, 8.6g. 

Estimate £1,000 - £1,500

A DIAMOND CLUSTER RING set with a marquise cut diamond in a cluster of round brilliant cut diamonds, no assay marks, size U1/2 / 10.5, 8.2g. 

Estimate £1,200 - £1,600

A SAPPHIRE AND DIAMOND BOMBE RING set with a round cut sapphire in a halo of round brilliant cut diamonds and half moon cut sapphires, accented by pave set round brilliant cut diamonds, no assay marks, size J1/2 / 5, 15.3g. 

Estimate £3,000 - £5,000

A DIAMOND RING set with a princess cut diamond, the shoulders set with baguette cut diamonds, stamped 18K 750, size R1/2 / 9, 3.9g. 

Estimate £400 - £600

A DIAMOND HALF ETERNITY RING half set with a row of princess cut diamonds, the diamonds all totalling 1.00 carats, stamped 750, size M / 6.25, 5.6g. 

Estimate £600 - £800

A CHALCEDONY AND DIAMOND RING DRESS RING set with an oval cabochon chalcedony in a cluster of marquise cut diamonds, the diamonds all totalling 2.0-2.5 carats, stamped 750 18K, size K1/2 / 5.5, 11.8g. 

Estimate £1,000 - £1,500

A FRENCH SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a row of graduated oval cut sapphires, the sapphires all totalling 4.8-5.2 carats, in scalloped edge surround, pave set with round cut diamonds, the diamonds all totalling 2.3-2.5 carats

Estimate £2,000 - £3,000

A BLUE TOPAZ AND DIAMOND CLUSTER RING in 18ct yellow and white gold, set with an oval cut blue topaz of 10.00 carats in a cluster of round brilliant cut diamonds, the diamonds all totalling 0.80 carats, partial British hallmarks, size N1/2 / 7, 8.0g.

Estimate £1,000 - £1,500

A DIAMOND RING set with a central pear shape rose cut diamond, surrounded by a cluster of round cut diamonds, stamped 14K, size N / 6.75, 2.8g. 

Estimate £500 - £700

A SAPPHIRE AND DIAMOND DRESS RING in crossover design, set with rectangular step cut sapphires and tapered baguette cut diamonds, inscribed D0.50 0.50, stamped K18, size O1/2 / 7.5, 5.9g. 

Estimate £600 - £800

AN ANTIQUE SAPPHIRE AND DIAMOND RING set with an oval cut sapphire in a border of old and rose cut diamonds, no assay marks, size M1/2 / 6.5, 2.1g. 

Estimate £2,500 - £3,500

A SAPPHIRE AND DIAMOND DRESS RING set with a cluster of round brilliant and single cut diamonds in a border of calibre cut sapphires, accented by further single cut diamonds, the diamonds all totalling 0.5-0.6 carats, no assay marks, size N1/2 / 7, 6

Estimate £700 - £900

AN AQUAMARINE AND DIAMOND RING set with an octagonal step cut aquamarine of approximately 6.02 carats, the stepped shoulders set with round brilliant cut diamonds, stamped 750, size Q / 8.25, 5.7g. 

Estimate £1,200 - £1,600

A PINK SAPPHIRE AND DIAMOND RING in platinum, set with a pink sapphire of approximately 1.57 carats, accented by round brilliant cut diamonds, full British hallmarks, size M / 6.25, 5.7g.

Estimate £2,000 - £3,000

AN EMERALD AND DIAMOND RING set with a pear cut emerald of 3.20 carats, accented by round brilliant cut diamonds, inscribed E3.20 PD0.53, stamped 585, size M1/2 / 6.5, 3.6g. 

Estimate £1,000 - £1,500

AN AQUAMARINE AND DIAMOND RING set with a cushion cut aquamarine of approximately 2.59 carats in a border of round brilliant cut diamonds, further round brilliant cut diamonds set to the shoulders, no assay marks, size M / 6.25, 5.5g. 

Estimate £2,000 - £3,000

A GREEN TOURMALINE AND DIAMOND RING set with an octagonal step cut green tourmaline of approximately 8.69 carats, accented by rows of single cut diamonds, no assay marks, size Q / 8.25, 8.8g. 

Estimate £1,500 - £2,500

A STAR RUBY AND DIAMOND RING set with an oval cabochon star ruby, the shoulders set with single cut diamonds, stamped 18K, size K1/2 / 5.5, 4.5g. 

Estimate £700 - £900

AN AQUAMARINE AND DIAMOND RING set with an oval cut aquamarine of approximately 5.76 carats accented by round cut diamonds, stamped 750, size O1/2 / 7.5, 9.2g. 

Estimate £1,000 - £1,500

A BLUE TOPAZ, SAPPHIRE AND DIAMOND RING set with a trilliant cut blue topaz and trilliant cut sapphires, in a border of round cut diamonds, no assay marks, size N1/2 / 7, 4.8g. 

Estimate £600 - £800

A RUBY AND DIAMOND RING designed as a stylised flower, set with a round brilliant cut diamond, the petals illusion set with calibre cut rubies, inscribed 0.10 R2.08, stamped K18WG, size L1/2 / 6, 5.5g. 

Estimate £800 - £1,200

A RUBY AND DIAMOND RING in 18ct white gold, set with an octagonal step cut ruby of approximately 0.70 carats, between stepped diamond set shoulders, the band engraved with stylised detailing, full British hallmarks, size N / 6.75, 2.9g.

Estimate £500 - £700

A NATURAL SALTWATER PEARL AND DIAMOND DRESS RING set with a pearl of 5.5mm and an old cut diamond of approximately 0.70 carats, in a border of rose cut diamonds, no assay marks, size J / 4.75, 2.9g. Accompanied by a gemmological report stating the pe

Estimate £1,000 - £1,500