But the design is so classic that it's super easy to find without resorting to dropping major cash for the Tom Ford original!
We found two equally affordable options that are super similar to Kate's dress.
Check 'em out ...AFTER THE JUMP!!!
We got what we wanted!
The stellar thespian looked FANTASTIC and at least a decade younger in a black lace Stella McCartney mini dress that showed off her fit legs.
But it's not just the frock that slays — Sandy's soft waves, dark berry lips, and Charlotte Olympia pumps catapulted the look right out of the stratosphere!
She's just been so flawless lately! We don't think she's ever looked better!
[Image via Daniel Deme/WENN.]