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

Set with an oval cabochon emerald, weighing approximately 25.83 carats, the circular and baguette-cut diamond shoulders accented by square-cut ruby detail, mounted in platinum. Estimate $80,000 – $120,000

With report CS 53659 dated 25 February 2013 from the American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of the emerald would be classified as Zambia. Clarity Enhancement: Faint

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