Art Deco aquamarine ring. Centrally set with a rectangular emerald-cut natural aquamarine in an open back claw setting with an approximate weight of 2.50 carats, flanked by six rectangular baguette cut diamonds in open back rubover settings with a combined approximate weight of 0.90 carats, to a striking stepped design featuring corner claws, a linear openwork collet and geometric open backholing, the slightly raised trumpeting shoulders flowing to a solid D-shape shank. Tested platinum, numbered '365', circa 1925.
