I recently featured a Look For Less for Keira Knightley's Atonement dress but now you can get the real thing! Clothes Off Our Back is auctioning the emerald green gown beginning today until March 1. The starting price is $1,000, and though it's a hefty price to pay, take into consideration that you'll be helping Variety, The Children’s Charity of Southern California. Plus, you'll forever have the dress that Keira wore in the Academy Award nominated film. Now that's a reason to be green with envy.

Photo courtesy of Focus Features