Lot 98. A 5.20 carats Kashmir cushion-shaped sapphire and diamond ring, by David Morris. Estimate CHF200,000 – CHF300,000 ($206,442 - $309,664. Photo Christie's Image Ltd 2016.

Set with a cushion-shaped sapphire, weighing approximately 5.20 carats, within a pear-shaped diamond surround, to the pavé-set diamond shoulders, ring size 6, mounted in gold. With maker's mark DM for David Morris

Accompanied by report no. 85369 dated 31 March 2016 from the SSEF Swiss Gemmological Institute stating that the origin of the sapphire is Kashmir, with no indications of heating, and that the colour may also be called 'Royal Blue' .

Report no. 0802068 dated 12 February 2008 from the Gübelin GemLab stating that the origin of the sapphire is Kashmir, with no indications of heating.

Christie's. GENEVA MAGNIFICENT JEWELS, 18 May 2016, Geneva