A diamond ring, by Van Cleef & Arpels. Photo Christie's Image Ltd 2013

Set with a modified pear-shaped diamond, weighing approximately 15.99 carats, flanked on either side by a pear-shaped diamond, mounted in gold-plated platinum, in a Van Cleef & Arpels navy suede box  Signed V.C.A. for Van Cleef & Arpels, N.Y., no. 1822 S.O. (Special Order). Estimate $500,000 – $700,000

With report 2155226158 dated 24 January 2013 from the Gemological Institute of America stating that the diamond is D color, VS2 clarity

Property of a Distinguished American Collection

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