Princess Diana

The garment, with a $80,000 to $100,000 estimate, was created by designers David and Elizabeth Emanuel who would go on to design Diana’s wedding gown.

Lay's Auctioneers announced it has negotiated a private treaty sale with an American buyer.

The red jumper which a newly-engaged Diana wore to a polo match in June 1981, was sold for 1.14 million US dollars (£920,000) at auction.