A modified rectangular-cut fancy vivid yellow diamond ring of approx. 18.07 cts.

Lot 311. Set with a modified rectangular-cut fancy vivid yellow diamond, weighing approximately 18.07 carats, mounted in 18k gold, (illustrated unmounted)
With report 15632367 dated 15 December 2006 from the Gemological Institute of America stating that the diamond is fancy vivid yellow, natural color, VS1 clarity
Estimate: $550,000-650,000

Christie's. Magnificent Jewels. 11 December 2007. 20 Rockefeller Plaza, New York