An emerald and diamond ring. Photo Christie's Image Ltd 2013

Set with a cushion-cut emerald, within an old mine-cut diamond surround, mounted in silver and 18k gold. Estimate $100,000 – $150,000

With report CS 52494 dated 28 November 2012 from the American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of the emerald would be classified as Colombia. Clarity Enhancement: Faint 

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