Watch: Diana's 'revenge dress' back in the spotlight at auction

The late Diana, Princess of Wales, wore a strapless black silk evening dress to a party in London hours after her then-estranged husband Prince Charles admitted to committing adultery during their marriage.

Her dramatic arrival at the Serpentine Gallery in 1994 in the outfit became an iconic pop-culture moment.

Auction house Sotheby's expects the dress to sell for up to £220,000 ($300,000) when it goes under the hammer on 9 December - but first the dress will be toured around the world, appearing at Sotheby's London showroom from 18 to 24 September, before it heads to Hong Kong in October.

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