Art Deco platinum, diamond and ruby ring. アールデコ ダイヤモンド リング

Important platinum ring with a bezel of convex form entirely set with small diamonds. At the center of the bezel, is set ruby in brilliant cut, deep red (probably from Burma), with a diameter of 7.1 mms, flanked by two brilliant half size, with a diameter of 6.3 and 6.4 mms, about 1 carat each, of good purity.
American work, circa 1930

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