Lot 400. A 18.96 carats D colour VVS1 clarity Potentially Internally Flawless Diamond Ring, by Van Cleef & Arpels. Estimate CHF 1,500,000 - CHF 2,000,000 (USD 1,505,743 - USD 2,007,657). Price realised CHF 2,292,500. © Christie's Images Ltd 2017

Set with a rectangular cut-cornered diamond, weighing approximately 18.96 carats, between French-cut diamond shoulders, ring size 6, with French assay mark for platinum. Signed V.C.A., with maker's mark for Van Cleef & Arpels.

Accompanied by report no. 1182587716 dated 11July 2017 from the GIA Gemological Institute of America stating that the diamond is D colour,VVS1 clarity; also with a working diagram indicating that the clarity of the diamond is potentially Internally Flawless.

Christie's. Magnificent Jewels, 14 November 2017, Geneva