Siam Ruby and Diamond Ballerina Cluster Ring, circa 1960

Ruby and diamond coronet cluster ring. Set with an oval old cut natural unenhanced Siam ruby in an open back four claw setting with an approximate weight of 2.00 carats, encircled by...

Ruby and diamond ring by J.E.Caldwell & Co. Set with twenty round old cut natural unenhanced Burmese rubies in open back claw settings with a combined approximate weight of 2.00 cara...

A stunning, fine and impressive vintage 1.70 carat Thai ruby and 1.68 carat diamond, platinum cocktail ring; part of our unheated gemstone ring collections. This stunning, fine and impressive vintage ruby ring has been crafted in platinum. The pierced decorated frame is ornamented with a central feature six-claw set 1.70ct cushion cut Thai ruby. The feature ruby is encircled by twelve impressive claw set diamonds, alternating in marquise and baguette cuts. The elevated ring shoulders integrate with the main setting and blend seamlessly with the tri-stranded ring shank. The vintage cluster ring is hallmarked to the interior of the shank with the platinum guarantee mark (orb), the London Assay Office hallmark (leopard's head) and the date letter for 1975 (A). This impressive unheated ruby ring with diamonds is supplied with a ruby report card and certificate supplied by the Gemmological Certification Services, London*, in addition to an IDGL diamond grading report card. NOTE: * This documentation accredits the ruby originating in Thailand (Siam) and certifies that the gemstone shows no indications of heating; non-heated rubies are a scarcity. Images do not always reflect the true colour and brilliance of gemstones and diamonds. The video however provides a truer representation of the actual colour and showcases each stone in this vintage marquise cut ruby engagement ring...

A bold and substantial ruby and diamond cluster ring centred on a 4.40 carat natural ruby, certified by GCS London. The oval-cut ruby displays a saturated, vivid red hue with natura...