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!!!
Did we mention how much we've LOVING Xtina's new look?
Simple yet sublime — this is how Xtina should ALWAYS dress!
And those luscious golden curls were the cherry on top!
[Image via Getty Images.]