this picture taken on April 10, 2008, in Antwerp shows a necklace worn by US actress and Princess Grace Kelly, displayed at an exhibition 'Diamond Divas' in the Antwerp Diamond Museum. The exhibition shows diamond jewellery worn by royals, high society and stars of stage and screen. It opens on April 11 and will run through June 8, 2008.  AFP PHOTO DIRK WAEM DIRK WAEM BELGIUM OUT (Photo credit should read DIRK WAEM/AFP/Getty Images)