Colombian emerald and diamond ring. Centrally set with a rectangular old cut natural Colombian with minor oil in an open back split corner claw setting with an approximate weight of 3.11 carats, flanked by two tapered baguette cut diamonds in open back platinum rubover settings with an approximate combined weight of 0.60 carats, to an intricate pierced openwork gallery with elegant cheniers and square backholing, flanked by gently sloping inward tapered shoulders leading to a solid D-shape shank. Marked 18 carat yellow gold and platinum, English, circa 1950s, accompanied by Swiss Gemmological Institute (SSEF) report #122656.
