Renae Plant, curator of the Princess Diana Museum, fell to the floor in excitement after winning the dress for $400,000 plus fees, bringing the final sale price to $520,000.

The auction, "Princess Diana's Style & A Royal Collection," will take place June 26 in Beverly Hills, California.

Fast-forward to 1987, Diana completed her carefully considered look with flat baby blue shoes (which, according to the new 2025 Cannes Film Festival dress code, would be against protocol for women ...

Diana's blue floral "Caring Dress," which she often wore to visit children, also sold for higher than expected. Renae Plant, curator of the Princess Diana Museum, fell to the floor in excitement ...