A 22.03 carats pear-shaped fancy deep yellow-brown diamond and diamond ring. Estimate $300,000 – $500,000. Photo Christie's Image Ltd 2015

Set with a pear-shaped fancy deep yellow-brown diamond, weighing approximately 22.03 carats, to the circular-cut diamond gallery and half-hoop, mounted in 18k rose gold

With report 1156071179 dated 31 October 2012 from the Gemological Institute of America stating that the diamond is fancy deep yellow-brown, natural color, SI1 clarity

Christie's. MAGNIFICENT JEWELS, 14 April 2015, New York, Rockefeller Plaza