Important emerald and diamond ring - Photo Sotheby's
Claw-set with a step-cut emerald, between pear-shaped diamond shoulders, size 60, sizing band, numbered, French assay marks. Estimation: 470,000 - 745,000 CHF
Accompanied by Gübelin report no. 12100101, stating that the 17.54 carat emerald is of Colombian origin, with indications of minor clarity enhancement.
Sotheby's. Magnificent Jewels. Genève | 14 nov. 2012 www.sothebys.com