WWD has confirmed that the Palace will launch the 'Diana' exhibition on 26 March, when its transformation is complete in time for the Queen's Jubilee celebrations.
Diana's black, strapless Emanuel gown from her first official enagement will be shown along with four other famous designs including a fuchsia sari-style dress and a Versace LBD.
For a reminder of Diana's top fashion moments, take a look at her perfect 10 below.
The Perfect 10: Princess DianaA young Diana wowed the nation as she stepped out of Westminster Abbey in an Elizabeth Emanuel gown, complete with an eight metre train fit for a princess. The Perfect 10: Princess Diana Diana attended one of her first royal engagements in a ruflled, sky blue gown teamed with her signature pearl accessories. The Perfect 10: Princess Diana The princess showed off her chic daytime look at a summer polo match. Who would have thought that pleated mid-length skirts would be back in trend in 2011? The Perfect 10: Princess Diana Diana dressed appropriately in a military style suit for a passing out parade at Sandhurst. The Perfect 10: Princess Diana No one could take their eyes off Diana in this Catherine Walker gown. She certainly dressed to impress for dinner at the British Embassy in Paris. The Perfect 10: Princess Diana This beaded column dress and jacket has gone down in history as one of Diana's best style moments. She looked every inch a princess for her visit to Hong Kong. The Perfect 10: Princess Diana Diana lived up to her name as a style icon in this sleek evening gown. The Perfect 10: Princess Diana After Diana wore this Christina Stambolian dress to an event at The Serpentine in London, it quickly became one of the most famous LBD's in the world. Worn with a pearl and sapphire choker and a simple black clutch, she looked as elegant as always. The Perfect 10: Princess Diana What a dress! Diana scored a lot of fashion points in this gorgeous Valentino design. The Perfect 10: Princess Diana The princess showed off her ever so refined style at a gala event in Chicago. The Perfect 10: Princess Diana