7 avril 2014
Platinum and diamond 'Cinq Plans' ring, René Boivin
Platinum and diamond 'Cinq Plans' ring, René Boivin. Photo Sotheby's Of sculpted design, centering a row of old European-cut diamonds weighing approximately 1.25 carats, size 8; circa 1935. Estimate 7,500 — 10,000 USD Accompanied by a Certificate of Authenticity...