Art Deco diamond coronet cluster ring. Centrally set with one cushion shape old mine diamond in an open back claw setting with a weight of 0.80 carats, surrounded by a single row of eight cushion shape old mine diamonds in open back cut down and grain settings with a combined weight of 2.40 carats. The total approximate diamond weight is 3.20 carats, to an elegant circular cluster with polished borders, open cross wire gallery and shaped backholing, flanked by raised open inwardly tapering shoulders which smooth down to a solid D-shape shank. Tested platinum, circa 1920.
