Exceptional 9.15 carats Colombian emerald and diamond ringEstimate 150,000 — 220,000 CHF. Sold 199,000 CHF at Sotheby's Geneva, 14 Nov 2007, lot 292. Photo Sotheby's

The step-cut emerald weighing 9.15 carats, set between trapeze diamond shoulders, mounted in platinum, size 51.

Accompanied by SSFE report no. 49617 stating that the emerald is of Colombian origin, with no indications of clarity modification.