A pair of dresses worn by Princess Diana sold at a pop culture sale in Beverly Hills for a total of US$276,000 (NZ$349,000), a spokesman for the auction house has said.
The two dresses, which have been held in climate-controlled storage since her death in August 1997, were auctioned to a famous museum for US$144,000 and US$132,000, respectively, said Darren Julien, president and CEO of Julien's Auctions.
"We did have bidders from all over the world participating, and it's great to have them go to a museum where they are going to be on display and valued by the public," Julien said.
Julien said he could not name the museum without consent from officials there.
The dress that sold for US$144,000 was described by the public sale house as a black crepe evening gown that Diana wore during a state visit in 1992.
The princess wore the second dress, which is silk chiffon and strapless, to the Cannes Film Festival in 1987 as well as in a portrait sitting that year and to a 1989 presentation of "Miss Saigon" at Theatre Royal in London.
The two dresses had been auctioned by Diana for contributions three months before her death, Julien said.
The owners, WeTV and Wedding Central, decided the time was right to auction them again to match with the April 29 wedding of Britain's Prince William to Kate Middleton.
He said a portion of the income would be donated to one of Diana's charities.
Diana, who married Prince Charles on July 29, 1981, died after a car crash in Paris on August 31, 1997.