Emerald and diamond cluster ring. Set to centre with a rectangular step-cut natural emerald in an open back rubover setting with an approximate weight of 0.60 carats, framed by fifty round eight cut diamonds in open back grain settings with a combined approximate weight of 0.30 carats, to an attractive openwork cluster design featuring millegrain edging, a finely pierced scrolling gallery and fancy shape open backholing, flanked by raised shoulders that terminate in ridge detailing, flowing through to a solid D-shape shank. Tested platinum and yellow gold, circa 1915.
