The "Martian Pink", a 12.04-carat Fancy Intense pink (Type IIa) diamond, is shown during a media preview at Christie's, in Hong Kong May 8, 2012. According to the company, the diamond is worth an estimated value of $8 to $12 million and will be sold at the auction on May 29 in Hong Kong.
Artists thronged the Hong Kong Convention and Exhibition Center for the preview of Hong Kong International art fair.