18 Karat Gold, Platinum, Sapphire and Diamond Ring, Van Cleef & Arpels - Sotheby's
Centered by a cushion-cut sapphire weighing approximately 11.00 carats, framed and flanked by round diamonds weighing approximately 1.75 carats, size 7¼, partially signed Van Cleef &, partially numbered N.Y.22. Estimation: 50,000 - 70,000 USD
Accompanied by SSEF report no. 55760 stating that the sapphire has no indications of heating.
Sotheby's. Important Jewels. New York | 07 févr. 2013 http://www.sothebys.com