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!!!
Has someone been watching re-runs of Rugrats?
Dressed in a studded, emerald green Givenchy gown, the Florence + the Machine singer looked like the most glamorous Stegosaurus we've ever seen!
The rest of Flo's ensemble was a little less prehistoric, opting for matching green sandals and clutch.
All we can say is: RAWR!
[Image via Getty Images.]