A diamond and multi-gem ring. Photo Christie's Image Ltd 2014

Set with a circular-cut diamond, weighing approximately 6.68 carats, to the variously-cut diamond, emerald, ruby and sapphire surround, mounted in gold. Estimate $35,000 – $55,000

With report 1152931868 dated 21 February 2014 from the Gemological Institute of America stating that the diamond is W to X Range color, VVS1 clarity

Christie's. MAGNIFICENT JEWELS, 16 April 2014, New York, Rockefeller Plaza - www.christies.com