Art Deco emerald and diamond ring. Set to centre with an octagonal emerald-cut emerald with no colour enhancement in an open back claw setting with an approximate weight of 1.40 carats, flanked by two rectangular baguette cut diamonds in open back rubover gypsy settings with an approximate combined weight of 0.40 carats, to a structured openwork gallery with backholing and intricate cheniers to the shoulders, flowing smoothly down to a solid lightly rounded shank. Tested platinum, circa 1925.