Solitaire old cut diamond ring by Oscar Heyman Brothers. 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 pierced collet and circular backholing, flanked by split tri-part shoulders of yellow gold and a platinum stepped central row, tapering down to a solid ridged yellow gold shank. 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.
