Antique emerald and diamond coronet cluster ring. Set with a square emerald-cut natural emerald with no colour enhancement in an open back rubover setting with an approximate weight of 1.00 carats, encircled by a single row of sixteen round old cut diamonds in open back rubover settings with a combined approximate weight of 0.50 carats, to an elegant scalloped cluster with an ornate openwork gallery and intricate pierced backholing, flanked by inward tapered shoulders leading to a solid D-shape shank. Tested platinum, circa 1915.
