Auctioneer Andrew Stowe, from Auctioneum Ltd in Bristol said: “This is an incredible result.
“There was interest from all around the world, with bidders from America, Hong Kong, Canada and Australia all trying to get their hands on Diana’s first work contract.
“Princess Diana, her life, and her story, hold a very special place in so many people’s hearts, and the result of this auction shows that she is still well remembered all around the world.
“At face value, this is just an everyday work contract; a piece of office stationery that lived in a filing cabinet alongside hundreds of others.
“Yet just over two years later, Diana Spencer would become Princess Of Wales and her life, and the whole of our history, would never be the same.
“This contract represents one of the last remaining snapshots of Diana’s ‘normal’ life,” he added.