Art Deco aquamarine and diamond. Set horizontally with three octagonal emerald-cut natural aquamarines in open back rubover settings with a combined approximate weight of 1.30 carats, flanked by two rectangular baguette cut diamonds in open back rubover settings with a combined approximate weight of 0.08 carats, to a geometric design featuring millegrain edging, an angular structural gallery and open backholing, leading to raised shoulders and flowing through to a solid D-shape shank. Tested platinum, indistinct maker's mark, circa 1920.
