updated 03/10/2008 AT 01:00 AM EDT
•originally published 03/10/2008 AT 01:00 AM EDT
Zellweger, who won in 2004, paired her gown with Cartier diamonds and sparkly Christian Louboutins.
The two-time Oscar winner accessorized with Chopard diamonds and a Salvatore Ferragamo clutch.
"I picked it out of millions of beautiful gowns," says last year's winner, also in Neil Lane jewels.