AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut aquamarine of

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut aquamarine of 2.00 carats, in a cluster of round brilliant cut diamonds, British hallmarks, size M / 6, 5.7g.

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut aquamarine of 4.68 carats in a border of old cut diamonds, the diamonds all totalling 1.7-1.9 carats, stamped 18ct, siz

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut emerald of 3.65 carats in a cluster of old cut diamonds totalling 1.8-2.0 carats, stamped 18ct, size O / 7, 7.4g.

A RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut ruby of 1.11 carats in a border of round and baguette cut diamonds totalling 0.54 carats, stamped 18K, size M / 6, 5.1g.

A DIAMOND CLUSTER RING in 18ct yellow gold, set with an antique cushion cut diamond of 1.51 carats in a cluster of old cut diamonds totalling 1.4-1.6 carats, the diamonds all totalling 2.9-3.1 carats,

AN AQUAMARINE AND DIAMOND RING in yellow gold and silver, set with a cushion cut aquamarine of approximately 2.88 carats between two rose cut diamonds, no assay marks, P1/2 / 7.5, 3.3g.

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct white gold, set with an emerald cut aquamarine of 3.71 carats in a border of round cut diamonds totalling all 0.11 carats, stamped Au750, size O / 7, 4.0

AN AQUAMARINE AND DIAMOND DRESS RING in 18ct white gold, set with a cushion cut aquamarine of 10.74 carats, accented by two pear shaped rose cut diamonds, within borders of round cut diamonds, stamped

AN AQUAMARINE AND DIAMOND THREE STONE RING in yellow gold and platinum, set with a cushion cut aquamarine between two round brilliant cut diamonds, obscured British hallmarks, size N / 6.5, 2.7g.

AN ANTIQUE AQUAMARINE AND DIAMOND DRESS RING, 19TH CENTURY in yellow gold and silver, set with a cushion cut aquamarine between two step cut diamonds, no assay marks, size P / 7.5, 1.8g.

A ladies antique two tone 18k gold and gemstone ring. Features a large 12mm x 11mm x 8mm cushion cut aquamarine flanked by a pair of bezel set old European cut diamonds measuring 4mm wide each. Marked

1) 14K white gold ring featuring a cushion cut aquamarine prong set in a halo of round cut diamonds, sz. 5.5, and 2) 14K yellow gold ring featuring an oval cut blue topaz and four accent diamonds, sz.

A 14K yellow gold fashion ring featuring a 7mm x 7mm center cushion shaped aquamarine, flanked by four round brilliant cut channel set diamonds on each side. Size 9. 2dwt. Retail $1,395

A CEYLON NO HEAT SAPPHIRE AND DIAMOND CLUSTER RING in yellow gold, set with a cushion cut sapphire of 4.79 carats in a cluster of round brilliant cut diamonds, no assay marks, size K1/2 / 5.5, 6.7g. A

A CHROME TOURMALINE AND DIAMOND RING in 18ct yellow gold, set with a cushion cut chrome green tourmaline of 12.76 carats in a stylised border of round brilliant cut diamonds, partial British hallmarks

A BURMA NO HEAT PINK SPINEL AND DIAMOND RING in 18ct yellow gold, set with a cushion cut pink spinel of approximately 2.25 carats accented by rose cut diamonds, full British hallmarks, size L1/2 / 6,

A RUBY AND DIAMOND CLUSTER RING in yellow gold, set with a cushion cut ruby of approximately 0.54 carats in a cluster of old cut diamonds totalling 0.8-0.9 carats, no assay marks, size M / 6, 4.2g.

A RUBY AND DIAMOND CLUSTER RING in yellow gold, set with a cushion cut ruby of approximately 0.54 carats in a cluster of old cut diamonds, no assay marks, size N / 6, 1.7g.

A RUBY AND DIAMOND CLUSTER RING in yellow gold, set with a cushion cut ruby of approximately 0.39 carats in a cluster of rose cut diamonds, no assay marks, size N / 6.5, 1.8g.

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.

RUBY AND DIAMOND RING in 18ct yellow gold, set with three cushion cut rubies and alternating round cut diamonds, stamped 18CT, size N / 6.5, 1.9g.

AN ANTIQUE PINK SPINEL AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a round cut spinel of approximately 0.91 carats in a cluster of old cut diamonds, partial British hallmarks for London 192

A RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut ruby in a cluster of round brilliant cut diamonds, full British hallmarks, size N / 6.75, 3.8g. 

A SAPPHIRE AND DIAMOND CLUSTER RING in 18ct yellow gold, set with an oval cut sapphire of 1.53 carats in a cluster of old cut diamonds, each shoulder set with a further old cut diamond, the diamonds a