Art Deco Colombian emerald and diamond cluster ring. Set to centre with an octagonal emerald-cut natural Colombian emerald with no colour enhancement in an open back rubover setting with an approximate weight of 1.10 carats, flanked by two round old cut diamonds in open back grain settings with a combined approximate weight of 0.40 carats, further decorated by twelve round eight cut diamonds in open back grain settings with a combined weight of 0.25 carats. The total approximate diamond weight is 0.65 carats, to a geometric cluster design featuring linear millegrain borders, a pierced gallery with chenier detail and fancy shape open backholing, leading to slightly raised ridged shoulders and flowing through to a solid ridged shank. Tested platinum, circa 1925, accompanied by Gemmological Certification Services report #81286-02.
