Platinum, Diamond and Sapphire Ring, circa 1915. Estimate 100,000 — 150,000 USD. Photo Sotheby’s.
Set with an old European-cut diamond weighing 5.11 carats, the mounting accented by old European and single-cut diamonds weighing approximately .40 carat, further decorated with calibré-cut sapphires, size 5¾; circa 1915.
Accompanied by GIA report no. 116271636 stating that the diamond is G color, VS2 clarity.
Sotheby’s. Important Jewels. New York – 05 Feb 2015, 10:00 AM