All About Princess Diana's Revenge Dress, and the Infamous Interview That Proceeded It On June 29, 1994, Princess Diana wore a bold black off shoulder dress to a dinner at the Serpentine Gallery. The dress, designed by Christina Stambolian, later became famous as the revenge dress., Princess Diana Revenge Dress: The Story Behind Diana's Iconic Dress Marie Claire UK Princess Diana's Iconic Revenge Dress Wasn't the First Time the Royal Shocked in a Low Cut Black Number Princess Diana arriving at the Serpentine Gallery on June 29th, 1994. That same night, Charles sat down for a televised documentary and admitted on camera that he had been unfaithful to her. All About Princess Diana's Revenge Dress, and the Infamous Interview That Proceeded It