Fine emerald and diamond ring, M. Gérard. Photo Sotheby's

The step-cut emerald weighing 14.69 carats, framed with brilliant-cut diamonds, size 50, sizing band, signed M. Gérard, numbered, French assay and maker's marks, fitted case stamped M. Gérard. Estimation 405,000 — 670,000 CHF

Accompanied by SSEF report no. 73784, stating that the emerald is of Colombian origin, with no indications of clarity modification, together with an appendix letter.

Sotheby's. Magnificent Jewels and Noble Jewels. Genève, 13 mai 2014 - http://www.sothebys.com/