30 mars 2019
An Important Fancy Intense Blue Diamond and Diamond Ring
Lot 139. An Important 3.24 carats VVS1 Type IIb Fancy Intense Blue Diamond and Diamond Ring. Estimate 2,500,000 — 3,000,000 USD . Sold for $2,300,000 ($709,877 per carat). Courtesy Sotheby's. Set with a cut-cornered square modified brilliant-cut Fancy...