Princess Diana’s iconic black 'revenge dress' is heading to auction decades after she wore it during one of the most closely watched moments of her life. She wore the Christina Stambolian dress to a London event in 1994, hours after a TV interview aired in which then-Prince Charles acknowledged his infidelity. Sotheby’s expects the dress to sell for up to $300,000, with the auction marking the first time it has been offered for sale since Diana herself auctioned it for charity in 1997. #princessdiana #royalfamily #fashion #news #royals