Elegant Black Princess Long Black Ball Gown for Girls Aged 5 14 Perfect for Pageants and Special Occasions Many of Princess Diana's dresses have been auctioned off for between $500,000 and $1 million. The most expensive dress worn by the late royal to be sold at auction is a 1985 The Cost of Princess Diana's Wedding Dress: A Timeless Legacy in Bridal Fashion Princess Diana's Fairytale Wedding Dress 44 years ago today, on July 29, 1981, Princess Diana captivated 750 million viewers worldwide, as she married Prince Charles at St. Paul's Cathedral. She Princess Dress Up Dresses Princess Dresses for Girls PinkPrincess.com