Oscar Heyman Brothers diamond eternity ring. Set with one hundred and twenty four round brilliant cut diamonds in round open back grain settings with a combined approximate weight of 3.88 carats, to a smoothly conforming four row full eternity band with polished edges and intricate open backholing, approximately 10mm in width. Marked platinum and iridium, makers marks for Oscar Heyman Brothers, inscribed 'W4908', American.
