Oscar Heyman Brothers ruby and diamond ring, American, circa 1950.
Oscar Heyman Brothers ruby and diamond ring. Set with a central tapered row of nine tapered baguette cut natural rubies with no colour enhancement in open back rubover settings with an approximate combined weight of 1.50 carats, further set with sixteen round brilliant cut diamonds in open back rubover settings, with an approximate combined weight of 0.80 carats. To a crossover design featuring openwork with scalloped edging, an intricate pierced gallery and fancy open backholing, leading to raised shoulders, flowing through to a solid D-shape shank. Marked platinum and iridium, numbered '63754', with Oscar Heyman circle and line markings to the sides, American, circa 1950.