15 mai 2017
A 4.05 carat fancy deep blue diamond ring
Lot 221. A 4.05 carat fancy deep blue diamond ring. Estimate CHF 5,000,000 - CHF 7,000,000 (USD 4,976,816 - USD 6,967,542). © Christie's Images Ltd 2017 Set with a fancy deep blue square cut-cornered diamond, weighing approximately 4.05 carats, to the...