Platinum, Sapphire and Diamond Ring, Oscar Heyman & Brothers - Photo Sotheby's

Centered by a square emerald-cut sapphire weighing 19.79 carats, flanked by two tapered baguette diamonds weighing 1.05 carats, size 8¾, numbered 32651, 1944. Estimation: 35,000 - 45,000 USD

Accompanied by AGL report no. CS 52153 stating that the sapphire is of Sri Lankan origin, with no indications of heating.

Sotheby's. Important Jewels. New York | 07 févr. 2013 http://www.sothebys.com