Fine sapphire and diamond ring - Sotheby's

Double-claw set with a step-cut sapphire weighing 25.51 carats, size 51, sizing beads. Estimate:  470,000 – 655,000 CHF

Accompanied by SSEF report no. 67459, stating that the sapphire is of Burmese origin, with no indications of heating. 

Sotheby's. Magnificent Jewels and Noble Jewels. Genève | 14 mai 2013 - www.sothebys.com