Colombian emerald and diamond cluster ring. Centrally set with a cushion shape old cut natural Colombian emerald with no colour enhancement in an open back claw setting with an approximate weight of 1.00 carats, encircled by two rows of sixty four round rose cut diamonds in open back grain settings with a combined approximate weight of 0.64 carats, to an elegant openwork cluster design featuring fancy pierced backholing, the raised squared shoulders lead to a slim square shank. Tested silver and yellow gold, circa 1880.
