A rectangular-cut diamond ring. Photo: Christie's Images Ltd., 2010

Set with a rectangular-cut diamond, weighing approximately 10.02 carats, flanked on either side by a tapered baguette-cut diamond, mounted in platinum - Estimate $400,000 - $500,000 Price Realized $626,500

With report 10319222 dated 3 March 1998 from the Gemological Institute of America stating that the diamond is E color, VS1 clarity

Christie's. Jewels: The New York Sale Including the JAR Imperial Topaz, Ruby and Diamond Ear Pendants, The Bulgari Blue, Jeweled Elegance & the Vanderbilt Diamond Necklace, 20 October 2010, New York, Rockefeller Plaza www.christies.com