Emerald and diamond cluster pendant, the Colombian emerald drop (11.7 by 7.8 by 4.5 mm) with an estimated weight of 2.5 carats and framed by a cluster of brilliant cut diamonds mille grain set in platinum, the combined diamond weight estimated to be 0.90 carat, circa 1910, the trace chain in 18ct white gold added later; the pendant approx. 27 by 15.5 mm.