Princess Diana's dress sells for record-breaking $604,000

A velvet gown created for Princess Diana by the British couturier Victor Edelstein has become the most expensive dress ever made at Sotheby's.

According to CNN, the deep purple ball gown, which Princess Diana wore for a formal portrait with her husband, Prince Charles in 1991, and then sported in it shortly before her death in Vanity Fair magazine in 1997, was sold at an auction at the world-famous Sotheby's house in New York.

Experts had originally expected the dress to fetch between $80,000 and $120,000, but it ended up being sold for $604,800, making it the most expensive dress in the history of the auctioneer.

This is not the first time this dress has been sold at an auction. In 1997, Diana's outfits, which she wore to public events in her position as the Princess of Wales, were sold by Christie's auction house.

At the time, the velvet Victor Edelstein gown was bought by a private collector for over $24,000. Lady Di, as she was dearly called by the English people, donated the proceeds to a charity back then, the Cancer Foundation of the Royal Marsden Hospital and the AIDS Foundation.