26.92 carats Kashmir sapphire and diamond ring. Estimate 780,000 — 1,360,000 CHF.Photo Sotheby's

The oval sapphire weighing 26.92 carats, set within a surround of marquise- and pear-shaped diamonds, size 52, ring designed by Maurice Galli.

Accompanied by a duplicate of Gübelin report no. 14030231 and a duplicate of SSEF report no. 82373, each stating that the sapphire is of Kashmir origin, with no indications of heating. 

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 11 nov. 2015, 10:00 AM