An important 44.99 carats cushion-cut fancy yellow diamond ring. Estimate $400,000 - $600,000. Price Realized $892,200. Photo Christie's Image Ltd 2007

The cushion-cut fancy yellow diamond weighing 44.99 carats to the brilliant-cut diamond gallery and shoulders

Accompanied by report No. 15838984 dated 30 April 2007 from the Gemological Institute of America stating that the diamond is Fancy Yellow colour, VS2 clarity 

Provenance: The Property of a Russian Princely Family 

Christie's. CONTEMPORARY JEWELS AND WATCHES, 1 November 2007, Jumeirah Emirates Towers Hotel