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.]
We really hope it was Liam Hemsworth on the other line!
The 20-year-old wore a rather casual twerking outfit, consisting of a tied-up tee and a pair of American Apparel shorts that were slowly creeping into camel toe country.
And of course we can't forget her engagement ring — the sun was shining on it like a spotlight!
[Image via AKM-GSI.]