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!!!
Olivia Wilde was like a white hot knife ready to cut through butter at the New York City premiere of Butter on Thursday night.
For her latest trek down the red carpet, Olivia wore, surprise! Alexander McQueen!
Olivia's white crepe Resort 2013 dress fit her like a glove and the McQueen gold skull clutch, matching Giuseppe Zanotti heels and House of Lavande earrings were the perfect additions.
We're so glad to see she was able to step out of her black comfort zone!
[Image via Ramey Pix.]