A 36.23 carats fancy brownish yellowdiamond and diamond pendent necklace. Estimate $350,000 – $450,000. Photo Christie's Image Ltd 2015

Suspending a pear brilliant-cut fancy brownish yellow diamond, weighing approximately 36.23 carats, within a circular-cut diamond surround, joined by a circular-cut diamond link to the fine link neckchain, set with a heart-shaped diamond and two circular-cut diamonds, 18 1/4 ins., mounted in platinum

Accompanied by report no. 6192860668 dated 28 April 2015 from the GIA Gemological Institute of America stating that the diamond is fancy brownish yellow, natural color, SI2 clarity

Christie's. IMPORTANT JEWELS, 20 October 2015, New York, Rockefeller Plaza