Art Deco diamond coronet cluster ring. Set to centre with a cushion shape old mine diamond in an open back rubover setting with an approximate weight of 1.15 carats encircled by eleven round old cut diamonds in open back grain settings with a combined weight of 0.75 carats. The total approximate diamond weight is 1.90 carats, to a circular target design featuring millegrain edging, a decoratively pierced scalloped gallery and fancy shape open backholing, leading to raised shoulders and flowing through to a solid D-shape shank. Tested platinum, circa 1920.
