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 actress was in fine form at the Don Jon premiere in New York on Thursday, looking doll-like in a seafoam green Roland Mouret dress with wide white straps and flirty open back.
It's such a sweet and romantic look, which makes sense since ScarJo has a lot of romance in her life right now!
A cute ponytail, light makeup, and strappy Roger Vivier sandals toned down the 28-year-old's electric sex appeal, though it helped that her boobage was completely covered.
And it must've been nice to rest her left hand on her hip to keep it from crashing to the floor from the weight of her engagement ring.
That thing is HUGE.
[Image via Ivan Nikolov/WENN.]