A sapphire, diamond and gold pendant-brooch. Photo Christie's Image Ltd 2013

Set with an oval-cut sapphire, weighing approximately 39.47 carats, within a variously-shaped diamond and gold sculpted surround, mounted in platinum and 18k gold. Estimate $30,000 – $50,000

With report CS 53774 dated 27 February 2013 from the American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of the sapphire would be classified as Burma (Myanmar). No gemological evidence of heat

Christie's. NEW YORK MAGNIFICENT JEWELS AND THE PRINCIE DIAMOND. 16 April 2013. New York, Rockefeller Plaza.