A 69.35 carats Ceylon sapphire and diamond ring. Estimate CHF500,000 – CHF600,000 ($543,219 - $651,862). Photo Christie's Image Ltd 2015.
Set with an oval-shaped sapphire, weighing approximately 69.35 carats, in a brilliant-cut diamond cluster, mounted in platinum, ring size 6½
Accompanied by report no. 78479 dated 20 February 2015 from the SSEF Swiss Gemmological Institute stating that the sapphire is of Ceylon origin, with no indications of heating
Christie's. MAGNIFICENT JEWELS, 13 May 2015, Geneva