Highly important sapphire and diamond ring - Photo Sotheby's

The cushion-shaped sapphire of fine colour weighing 16.99 carats, set between baguette diamond shoulders, size 53, sizing band, French assay and maker's marks. Estimation: 750,000 - 1,300,000 CHF

Accompanied by SSEF report no. 60653 and Gübelin report no. 12090163, each stating that that the sapphire is of Kashmir origin, with no indications of heating.

Sotheby's; Magnificent Jewels. Genève | 14 nov. 2012 www.sothebys.com