Lot 220. A 24.80 carats, L colour, VVS2 clarity rectangular-cut diamond ring. Estimate CHF400,000 – CHF500,000 ($411,364 - $514,205). Photo Christie's Image Ltd 2016

Set with a rectangular-cut diamond, weighing approximately 24.80 carats, to the triangular-shaped diamond shoulders, ring size 6½, mounted in platinum

Accompanied by report no. 6177281668 dated 18 August 2015 from the GIA Gemological Institute of America stating that the diamond is L colour, VVS2 clarity. 

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