A rectangular-cut diamond ring, mounted in platinum. Photo Christie's Image Ltd 2014

Set with a modified cut-cornered rectangular-cut diamond, weighing approximately 3.82 carats, flanked on either side by a triangular-cut diamond, mounted in platinum. Estimate $30,000 – $50,000

With report 2165099438 dated 25 April 2014 from the Gemological Institute of America stating that the diamond is G color, VS1 clarity

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