Princess Diana was known for her iconic wardrobe, and members of the public are willing to pay big for them more than two decades after her death. A silk floral-printed dress designed by Bellville Sassoon and worn by Diana on multiple occasions sold Thursday for over $500,000 at an auction in Beverly Hills, California.

A floral dress that Princess Diana wore to visit children in hospital was among dozens of wardrobe items that went under the hammer at a California auction.

The sale, taking place today at the Peninsula Beverly Hills in Los Angeles, is touted as a landmark auction with over 300 units for sale, including several looks worn by Princess Diana that have never hit the market before.