Art Deco peridot and diamond cluster ring. Set with a cushion shape old cut natural peridot to centre in an open back rubover setting with an approximate weight of 4.50 carats, further set with twenty cushion shape old cut diamonds in open back grain set settings with an approximate combined weight of 4.00 carats, to a bold bombe cluster design featuring millegrain edges, an intricate linear openwork collet, a finely pierced gallery with scrolling details and fancy open backholing, flanked by trumpeting openwork shoulders leading to a solid D-shape slim shank. Tested platinum, circa 1920.
