WHAT: Fourteen of Princess Diana’s designer evening gowns went up for auction yesterday, attracting some big bids. In 1997, American Maureen Rorech Dunkel purchased the collection anonymously at Christie’s in New York for approximately $870,000. Last night, one dress alone—the dark blue gown she wore while dancing with John Travolta—sold for nearly that amount. A portion of proceeds from last night’s sale will be donated to the National Ballet School.