Lot 532. Highly important 16.99 carats Kashmir sapphire and diamond ring. Estimate 750,000 — 1,300,000 CHF. Lot sold 1,986,500  CHF. Photo Sotheby's 2012

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.

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 Geneva | 14 Nov 2012