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 knew she had something shiny in her suitcase!
The actress donned a red Julien Macdonald gown with thigh-high split that was covered in mirrored pieces and jewels.
Metallic heels and a simple, pulled back 'do completed her attention-grabbing ensemble.
This is definitely one of Vanessa's more memorable looks.
[Image via Splash News.]