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.]
The 16-year-old also repped Saint Laurent with her ruffled sheer top and seksi black leather mini skirt, covering them up with a green striped Jonathan Saunders blazer.
Black Jimmy Choo pumps and bouncy curls provided the finishing touches.
On second thought, it's not just her Chanel collection, but her entire closet that's enviable!
[Image via Splash News.]