Vintage Colombian emerald and diamond cluster ring. Set with an octagonal emerald-cut natural Colombian emerald with no colour enhancement to centre in an open back claw yellow gold setting with an approximate weight of 1.56 carats, surrounded by twelve round brilliant cut diamonds in open back grain settings with a weight of 0.60 carats, further set with two round single cut diamonds in open back grain settings with a combined weight of 0.06 carats. The total approximate diamond weight is 0.64 carats, to a sophisticated geometric cluster design, featuring curving corner claws, millegrain borders, openwork gallery and fancy open backholing, flanked by elegant tapered shoulders, leading smoothly to a solid D-shape shank. Marked palladium with yellow gold claws, maker's mark "L" in a cirle, circa 1940, accompanied by Gemmological Certification Services report #5776-3077.
