Colombian cabochon emerald and diamond coronet cluster ring. Set to centre with a round cabochon natural Colombian emerald with moderate clarity enhancement in an open back rubover setting with an approximate weight of 1.50 carats, encircled by fourteen round rose cut diamonds in open back grain and rubover settings with an approximate weight of 0.40 carats, to an elegant coronet cluster design featuring millegrain edging, a pierced gallery with chenier details and fancy shape open backholing, leading to raised shoulders and flowing through to a solid D-shape shank. Tested platinum, circa 1915, accompanied by Gem & Pearl Lab report #23345.
