Colombian cabochon emerald and diamond ring. Centrally set with an oval cabochon natural Colombian emerald with an approximate weight of 10.26 carats in an open back claw setting, flanked by two square baguette cut diamonds in open back rubover settings with a combined approximate weight of 0.60 carats, to an impressive flanked solitaire design featuring split corner claws, a structured geometric pierced gallery featuring scrolling motifs and open backholing, the trumpeting openwork shoulders flowing down to a solid tapering D-shape shank. Marked platinum, circa 1970, accompanied by Gemmological Certification Services report #80240-53 and Swiss Gemmological Institute (SSEF) report #111112.
