Old mine diamond solitaire ring. Set to centre with a cushion shape old mine diamond in an open back claw setting with an approximate weight of 1.30 carats, to an impressive solitaire design featuring curving claws, a decorative gallery with scrolling motifs, and circular open backholing, leading to broad chamfered shoulders and tapering through to a solid D-shape shank. Marked 18 carat yellow gold and platinum, circa 1940.
