A SAPPHIRE AND DIAMOND RING in 18ct white gold, set with a row of alternating rectangular step cut

A FINE ART DECO PINK TOURMALINE AND DIAMOND RING in 18ct white gold, set with two rectangular step cut pink tourmalines of 1.78 and 1.32 carats, the pierced openwork shoulders set with old cut diamond

AN EMERALD AND DIAMOND BAND RING in 18ct yellow gold, set with a row of alternating step cut emeralds and princess cut diamonds, British hallmarks, size Q / 8, 3.4g.

AN ART DECO SAPPHIRE AND DIAMOND RING in 18ct yellow and white gold, set with a square step cut sapphire within a border of old cut diamonds, stamped 18ct, 2060, size P / 7.75, 2.4g.

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with two rows of pear cut sapphires accented by a border of round brilliant cut diamonds, British hallmarks for 18ct gold, size L / 5.5, 6.4g.

NO RESERVE - AN ANTIQUE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with a row of alternating round cut sapphire and rose cut diamonds, full British hallmarks for 1902, size N1/2 / 7, 2.5g.&nbs

A SAPPHIRE ETERNITY RING in 18ct white gold, set all around with a row of blue step cut and French cut sapphires all totalling 5.4-5.5 carats, stamped 750, size N / 7, 3.2g.

Ladies 18kt white gold sapphire and diamond ring featuring prong set rectangular step cut blue sapphire and prong set oval cut pink sapphire weighing approx. 2.56ct., Each surrounded by halos of prong

Ladies 18kt white gold emerald and diamond ring featuring a prong set rectangular step cut emerald weighing approx. 1.91ct.. Surrounded by a halo and multi-row band of prong set round brilliant cut di

Ladies 18kt white gold emerald and diamond ring featuring a prong set rectangular step cut emerald weighing approx. 1.91ct.. Surrounded by a halo and multi-row band of prong set round brilliant cut di

An 18ct gold diamond ring. The rectangular-shape diamond line, within a channel-setting, to the brilliant-cut diamond sides and plain band. Estimated total diamond weight 0.40ct. Hallmarks for London,

AN AQUAMARINE AND DIAMOND RING in 18ct white gold, set with a step cut aquamarine of 2.31 carats within an abstract border pave set with round brilliant cut diamonds, the diamonds all totalling 2.8-3.

AN EMERALD AND DIAMOND RING in 18ct white gold, set with a step cut emerald of 1.00 carat between two baguette cut diamonds, British hallmarks, size M / 6, 3.6g.

A SAPPHIRE AND DIAMOND RING in 18ct white gold, set with an oval cut sapphire of 3.13 carats in a double border of round brilliant cut diamonds, the diamonds all totalling 1.0-1.1 carats, stamped 18K,

AN ANTIQUE SAPPHIRE AND DIAMOND RING in 18ct yellow gold, set with alternating cushion cut sapphires and old cut diamonds, British hallmarks for 18ct gold, size O / 7, 3.1g.

A VINTAGE AQUAMARINE AND DIAMOND RING, H STERN in 18ct white gold, set with a step cut aquamarine of 6.81 carats, the shoulders each set with two single cut diamonds, maker's mark S, stamped 750, size

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct white gold, set with an oval cut sapphire of approximately 4.11 carats in a cluster of round brilliant cut diamonds all totalling 1.4-1.6 carats, stamped 18

AN AQUAMARINE AND DIAMOND THREE STONE RING in 18ct white gold, set with an octagonal step cut aquamarine of 4.30 carats between two round brilliant cut diamonds both totalling 0.9-1.0 carats, full Bri

AN EMERALD AND DIAMOND THREE STONE RING in 18ct white gold, set with an octagonal step cut emerald of 4.46 carats between two trilliant cut diamonds both totalling 0.65 carats, stamped 18K, size N / 6

A SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with two round cut sapphires accented by six marquise cut diamonds, the sapphires both totalling 2.40 carats, the diamonds all totalling 1.50

AN EMERALD AND DIAMOND RING in 18ct white gold, in foliate design, set with a step cut emerald of 0.40 carats and old cut diamond of 0.50 carats, accented by further rose cut diamonds, stamped 750, si

A VINTAGE RUBY AND DIAMOND RING in 18ct yellow gold, set with a row of alternating old cut diamonds and cushion cut rubies, stamped 18ct, size O / 7, 3.4g.

A RUBY AND DIAMOND DRESS RING in 18ct white gold, set with two rows of pear cut rubies accented by a border of round brilliant cut diamonds, British hallmarks for 18ct gold, size L / 5.5, 6.5g.

A DIAMOND DRESS RING in 18ct white gold, set with a cluster of step cut and round cut diamonds, with further diamonds to the band, stamped 750, size P / 8, 3.8g.

AN UNHEATED VIOLET SAPPHIRE AND DIAMOND DRESS RING in 18ct white gold, set with a central oval cut violet sapphire of 2.02 carats, within a navette border set with clusters of marquise and round brill