Platinum, 18 Karat Gold, Emerald and Diamond Ring, David Webb. Photo Sotheby's

Centered by a square emerald-cut emerald weighing 11.20 carats, flanked by triangular-shaped diamonds weighing 3.79 carats, size 5½, unsigned. Estimation: 125,000 - 175,000 USD 

NOTE DE CATALOGUE: Accompanied by AGL report no. CS 50495 stating that the emerald is of Classic Colombian origin, clarity
enhancement: insignificant, type: traditional.
Accompanied by a Certificate of Authenticity from David Webb.

Sotheby's. Important Jewels. New York | 20 sept. 2012 www.sothebys.com