A colored diamond ring. Photo Christie's Image Ltd 2013

Set with a modified cushion-cut fancy yellow diamond, weighing approximately 31.97 carats, to the circular-cut diamond shoulders and hoop, mounted in 18k gold, ring size 6. Estimate:  $700,000 – $1,000,000

With report 1152128564 dated 11 December 2012 from the Gemological Institute of America stating that the diamond is fancy yellow, natural color, VS1 clarity

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