Emerald and diamond three stone ring. Set to centre with an octagonal emerald-cut emerald in an open back claw setting with an approximate weight of 0.40 carats, further set with two cushion shape old mine diamonds in open back claw settings with an approximate combined weight of 0.50 carats, to a graduating three stone design with curving split claws, an intricately pierced gallery and fancy open backholing, leading to inwardly tapering raised shoulders with chenier detail and flowing through to a solid D-shape shank. Marked 18 yellow carat gold and platinum, circa 1910.
