A Pair of Colored Diamond Ear Clips. Photo: Christie's Images Ltd 2012

Each set with either a marquise-cut fancy intense blue diamond, weighing approximately 1.81 carats, or a marquise-cut fancy grayish blue diamond, weighing approximately 1.85 carats, each within a marquise and baguette-cut diamond scrolling surround, mounted in platinum. Estimate $350,000 - $500,000

With report 5111789083 dated 22 March 2010 from the Gemological Institute of America stating that the diamond, weighing approximately 1.81 carats, is fancy intense blue, natural color, VS1 clarity

With report 2115789090 dated 24 March 2010 from the Gemological Institute of America stating that the diamond, weighing approximately 1.85 carats, is fancy grayish blue, natural color, VVS2 clarity 

Christie's. Magnificent Jewels, 17 April 2012, New York, Rockefeller Plaza