The designer dress worn by Prime Minister David Cameron's wife to last year's royal wedding is being auctioned for charity.
Samantha Cameron was described as one of the best dressed guests when she wore the green, silk teal Burberry dress to the Duke and Duchess of Cambridge's nuptials, accessorising it with a dazzling orange scarf, statement necklace and nude shoes.
The garment will be sold to raise money for Save the Children.
Mrs Cameron said: "Save the Children do amazing work here in the UK and internationally.
"By taking part in the Born to Shop auction, the public can do their bit to help Save the Children make a difference to the lives of children all over the world.
"I love the Burberry dress I wore to the royal wedding, and am thrilled that I have been able to donate it to the Save the Children Born to Shop auction."
Fashionistas have eight days left to bid on the eBay auction to secure their piece of fashion history.
Launched on September 13, #bidboutique, Save the Children's first online auction in conjunction with both eBay and The British Fashion Council is supported by a host of celebrities and designers, including Preen, Erdem, House of Holland, Alexander McQueen and Piers Atkinson.
The Born to Shop #bidboutique online auction is part of the No Child Born to Die campaign which aims to stop the needless deaths of more than 7.6 million children every year.
With the money raised from the auction, Save the Children will be able to deliver life-saving aid to children in some of the world's poorest countries.