15 novembre 2017
A square cut-cornered diamond ring
Lot 494. A square cut-cornered diamond weighing approximately 33.21 carats, I colour, VVS2 clarity ring. Estimate CHF 1,250,000 - CHF 1,550,000 . Price realised CHF 1,272,500. © Christie's Images Ltd 2017 Set with a square cut-cornered diamond, weighing...