Art Deco emerald and diamond coronet cluster ring. Set slightly raised to centre with an octagonal emerald-cut natural Colombian emerald with no colour enhancement and minor clarity enhancement in an open back rubover millegrain setting with an approximate weight of 1.5 carats, surrounded by a single row of twenty two round old single cut diamonds with an approximate combined weight of 0.44 carats in open back grain and millegrain settings. The square cluster is set to an extremely ornate openwork scrolling gallery, conforming to the finger with intricate backholing and slightly raised shoulders, flowing smoothly down to a solid flat shank. Marked platinum, French, circa 1925, accompanied by Gemmological Certification Services report 5775-1447.
