Through his hands have passed some of the world's most fabulous and important gemstones, including the Wittelsbach-Graff diamond and the Graff Pink diamond, once owned by New York's Harry Winston, but ...

The 35.56-carat Wittelsbach blue diamond, dating to the 17th century, was purchased by international jeweler Laurence Graff, the auction house said in a release. Graff was bidding against Aleks ...

wings spread to reveal its shimmering coating of diamonds, with the delicacy, refinement and spectacular attention to detail that characterise every Graff creation. Now, as the Graff Butterfly ...