FILE- This Oct. 25, 2010, file photo, shows an employee of Sotheby's auction house holding a 24.78 carat fancy intense pink diamond mounted as a ring, that was last seen on  the market some 60 years ago according to the house, ahead of an auction in central London. In November 2010, a rare pink diamond smashed the world record for a jewel at auction, selling for more than $46 million to a well-known gem dealer. London jeweler Laurence Graff paid $46,158,674, for the 24.78-carat &quot;fancy intense pink&quot; diamond, which he immediately named &quot;The Graff Pink.&quot;  (AP Photo/Lefteris Pitarakis, File)