Lot 263. Unmounted 13.62 carats Colombian emerald. Estimate 325,000 — 425,000 CHF. Photo: Sotheby's
The step-cut emerald weighing 13.62 carats.
Accompanied by SSEF report no. 90241, stating that the emerald is of Colombian origin, with no indications of clarity modification; together with Gübelin report no. 17030001, stating that the emerald is of Colombian origin, with indications of insignificant clarity enhancement.