Oscar Heyman Brothers emerald and diamond ring. Channel set with twelve calibre cut natural emeralds in open back rubover settings with an approximate combined weight of 0.50 carats to two tapered rows, further set with twelve round brilliant cut diamonds in open back grain settings with an approximate combined weight of 0.35 carats to two graduated rows, linking together and curving to centre with openwork between, conforming smoothly to the finger with intricate pierced backholing, and tapering at the trumpeted shoulders to a solid ridged shank. Marked platinum and iridium, numbered '62811', by Oscar Heyman Brothers, American, circa 1960s.
