Art Deco diamond cluster ring. Set with one central cushion shape old mine cut diamond in an open back claw setting with an approximate weight of 1.00 carats, encircled by a single row of ten round old cut diamonds in open back grain settings with a combined weight of 1.00 carats, further set with four cushion shape eight cut diamonds in open back grain settings with a combined weight of 0.12 carats. The total approximate diamond weight is 2.12 carats, to a square coronet cluster design featuring linear lines, an openwork gallery and open backholing, leading to raised shoulders and flowing through to a solid shank. Marked platinum, French, circa 1930.
