A sapphire and diamond necklace. Photo Christie's Image Ltd 2014

Designed as a graduated line of oval-cut diamonds and sapphires, mounted in platinum, 16½ ins. Estimate $180,000 – $220,000

With report CS 60810 dated 2 May 2014 from the American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of these sapphires would be classified as Classic Burma (Myanmar). No gemological evidence of heat 

Christie's. IMPORTANT JEWELS,10 June 2014, New York, Rockefeller Plaza - http://www.christies.com/