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!!!
Lauren Conrad was her usual fashionable self at the Young Hollywood Awards on Thursday.
Receiving the SodaStream UnBottle the World Award for her environmental work, the former Hills star sparkled in a form-flattering bustier dress with a flirty tulip skirt.
LC's metallic accented sandals and EF Collection bracelet kept the shine theme going, while her Bardot bangs and minimal makeup to show off her natural beauty.
A fashionista at her finest!
[Image via Getty Images.]
Tags: awards, bangs, ef collection, fashion, lauren conrad, los angeles, nude makeup, ombre hair, red carpet, santa monica, sodastream unbottle the world award, young hollywood, young hollywood awards