Oscar Heyman Brothers diamond solitaire ring. Set to centre with a round old cut diamond, I colour, VS2 clarity, with an approximate weight of 1.30 carats in an open back claw setting, to a impressive solitaire design featuring curving claws, a pierced collet and circular open backholing, flanked by tri-split shoulders and flowing through to a solid tapering shank with ridged detail. Marked 18 carat yellow gold and platinum, maker's mark for Oscar Heyman Brothers, numbered '4095', American, circa 1950, accompanied by Gemmological Certification Services report #5774-266.
