A cocktail dress worn by Diana, Princess of Wales is among a host of celebrity-worn fashion items set to go under the hammer.The collection of high-profile fashion looks also include the tutu worn by Sarah Jessica Parker in the opening credits of Sex And The City, a Burberry trench coat worn by late pop star Whitney Houston to a Moroccan music festival in 2008, and the glitzy Dolce and Gabbana trousers Cher wore to the Vanity Fair Oscar party in 2000.The auction, titled Unstoppable: Signature St

A cocktail dress worn by Diana, Princess of Wales is among a host of celebrity-worn fashion items set to go under the hammer.The collection of high-profile fashion looks also include the tutu worn by Sarah Jessica Parker in the opening credits of Sex And The City, a Burberry trench coat worn by late pop star Whitney Houston to a Moroccan music festival in 2008, and the glitzy Dolce and Gabbana trousers Cher wore to the Vanity Fair Oscar party in 2000.The auction, titled Unstoppable: Signature Styles Of Iconic Women In Fashion, takes place at Julien's Auctions on January 18.