Art Deco diamond cluster ring. Horizontally set with three cushion shape old mine diamonds in open back grain settings with an approximate combined weight of 0.80 carats, surrounded by thirty round rose cut diamonds in open back grain settings with a combined weight of 1.00 carat, The total approximate diamond weight is 1.80 carats, to a linear cluster with stepped design featuring polished edges, a geometric pierced gallery and square open backholing, the trumpeting shoulders tapering to a solid D-shape shank. Tested platinum, circa 1930.
