Tiffany & Co. diamond three stone ring. Set diagonally with one round old cut diamond in an open back claw setting with a weight of 0.45 carats and two round old cut diamonds in similar settings with a combined weight of 0.62 carats, further set with twelve round old cut diamonds in open back grain settings with a combined weight of 0.36 carats. The total approximate diamond weight is 1.43 carats, to an elegant three stone crossover form with a pierced gallery, intricate open backhoing and sweeping shoulders which lead through to grooved detail and a slim D-shape shank. Marked platinum and iridium, maker's mark for Tiffany & Co., American, circa 1950.
