20 novembre 2018
A highly important fancy vivid blue diamond ring
Lot 98. A highly important 10.62 carats fancy vivid blue diamond ring. Estimate 20,000,000 — 30,000,000 USD . © Sotheby's. Set with a pear-shaped Fancy Vivid blue diamond weighing 10.62 carats, accented by round diamonds, size 6½, with maker's mark for...