Art Deco diamond solitaire ring. Set with a round old cut diamond, I colour, SI1 clarity, with a weight of 4.17 carats, in an open back claw setting, to an angular solitaire design featuring millegrain detailing, a decoratively pierced gallery and open backholing, leading to raised shoulders and flowing through to a solid D-shape shank. Tested platinum, circa 1935, accompanied by Gemological Institute of America (GIA) report #6224642702 and HRD report #12031305001.
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