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!!!
She stunned in a seksi silver Zuhair Murad gown that was absolutely covered in sequins — and the sparkles weren't even the best part!!
So what was?
Probably the way the curve-hugging number squished up her boobs to perfectly display her cleavage, as well as the way the mermaid shape brought out her AH-mazing waist and hips.
We can't stop swooning!!
Tousled hair, dark nails, shiny earrings, and a black box clutch completed the HAWT ensemble!
[Image via Getty Images.]