A colored diamond ring. Photo Christie's Image Ltd 2014

Set with a circular-cut fancy vivid yellow diamond, weighing approximately 5.53 carats, within a circular-cut yellow diamond surround, to the circular-cut yellow diamond half-hoop, mounted in 18k gold. Estimate $200,000 – $300,000

With report 5151955970 dated 25 February 2014 from the Gemological Institute of America stating that the diamond is fancy vivid yellow, natural color, VS1 clarity 

Christie's. IMPORTANT JEWELS,10 June 2014, New York, Rockefeller Plaza - http://www.christies.com/