Well, the dress has been found ... to be a fake!
The thief who took the gown says he took the dress from Lupita's room at The London after finding the door ajar.
[Image via WENN.]
Both blonde actresses attended the Atelier Versace S/S 2012 presentation wearing looks from the Versace Resort collection.
Cameron showed off her newly chopped 'do in a black fringe dress and black ankle boots while Diane looked like her usual beautiful self in a black and white print number.
Who do U think was best dressed? Cam or Diane???
[Image via Fame Pictures.]