In the autumn of 1994, a single garment became something far greater than clothing — it became an act of self-definition. Diana, Princess of Wales, wore a black Christina Stambolian gown on the very night her husband confessed his infidelity to the world, and in doing so, transformed a personal crisis into a lasting cultural statement. Nearly three decades later, that dress — long known as the 'revenge dress' — is returning to auction at Sotheby's, where it is expected to fetch between £110,000 and £220,000, carrying with it the enduring question of how, in moments of rupture, we choose to pre