Colombian emerald and diamond cluster ring. Set to centre with an octagonal emerald-cut natural Colombian emerald in an open back claw setting with an approximate weight of 1.10 carats, further set with twenty eight rectangular baguette cut diamonds in open back claw settings with a combined approximate weight of 1.44 carats, to a swirling symmetric cluster design featuring split corner claws, an openwork gallery and fancy shape open backholing, flanked by scrolling shoulders which lead on to a solid tapering flat shank. Marked platinum, indistinct maker's mark, French, circa 1950, accompanied by Gemmological Certification Services report #80242-79.
