Three Princess Diana Dresses Sold for $1.6 Million at Auction Read the Incredible Story Behind Them Long Mermaid Sequined One Shoulder Formal Prom Dress with Slit 27dress White One Shoulder Rhinestone Slit Prom Dress TCDFD8625 Princess Diana, in an off the shoulder evening dress, arrives at the Royal Opera House, London, for the Royal Charity Premiere of 'Ivan the Terrible' by the Bolshoi Ballet Stock Photo Alamy One Shoulder Sheath Evening Dress with Ruffle Neckline & Slit FD2799 Viniodress Meghan Markle & Princess Diana's off the shoulder dresses compared Express.co.uk