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

Set with a fancy yellow oval-shaped diamond, weighing approximately 33.76 carats, to the gold hoop, ring size 6. Estimate CHF700,000 – CHF950,000

Accompanied by report no. 2155168575 dated 19 December 2012 from the GIA Gemological Institute of America stating that the diamond is Fancy Yellow colour, VS1 clarity 

Christie's. MAGNIFICENT JEWELS. 15 May 2013. Geneva