
Becky Markley holds the Wittelbach diamond, a rare 35.6 carat 17th century grey-blue diamond, at Christie's auction house in London, Friday, Dec. 5, 2008. The diamond was part of the dowry of the Infanta Mararita Teresa upon her engagement to Leopold I of Austria, given by her father King Philip IV of Spain.
The rare gem was snapped up by billionaire diamond-dealer Laurence Graff for about $24.3 million, including buyer's premium, Christie's spokeswoman Alexandra Kindermann said.
