Washington, Sept. 1 -- There are some fashion moments that belong to a particular era, and then there are those that seem to transcend time. Princess Diana's wardrobe belongs firmly in the latter category. From the soft, romantic silhouettes of her early royal years to the confident gowns, tailored looks and casual sportswear she embraced later, Diana's clothes became an unmistakable part of her public identity.

Decades after she first captivated the world, Diana, Princess of Wales, remains one of the most enduring fashion icons of the 20th century. Her wardrobe was photographed, discussed and remembered almost as closely as her public life itself. Today, pieces from that wardrobe offer a chance to revisit some of the moments that made h...