The fuschia evening gown by Victor Edelstein was among a collection of top celebrity memorabilia, including props worn by Michael Jackson and Elvis Presley, which were sold at the Gotta Have It! Rock and Pop Culture Auction last week (ends17Oct10).
The late British royal wore the dress to a gala with the President of Hungary in 1992 and it proved to be the biggest draw in the online sale, overshadowing the $62,250 (£41,500) one bidder paid for a pair of gloves worn by Jackson during a photoshoot for his classic album Bad, reports TMZ.com.
A jacket Rolling Stones star Keith Richards wore on the High Tides and Green Grass album sold for $36,000 (£24,000), while a 'Mr. Tiger' Karate Diamond Ring owned by Presley was snapped up for $27,350 (£18,230), and a handwritten poem by John Lennon, titled The National Health Cow, went for $21,000 (£14,000).