Kristen Stewart once sat down with a Middle Eastern prince for just 15 minutes after he donated $500,000 to charity for the privilege. Credit: Michel Dufour/WireImage

If Kristen Stewart ever questioned her worth, then she just got her answer. An unnamed Middle Eastern Prince once paid a whopping $500,000 to spend just 15 minutes with the Twilight star, movie mogul Harvey Weinstein told reporters at a screening for Hurricane Sandy benefit concert film 12.12.12 on Sunday, Sept. 8.

According to the New York Times, 23-year-old Stewart asked Weinstein just how much the prince was offering -- leading him to broker a deal with the prince for the chat in exchange of a substantial donation to the Sandy relief effort.

"And Kristen sits with the guy for 15 minutes," Weinstein concluded his jaw-dropping story.

The prince paid the sum in cash up front, and he and Stewart held their brief meeting at Madison Square Garden, where the Hurricane Sandy benefit concert would be held later that year.

In addition to Stewart, Weinstein also recruited several other A-list celebrities to help out with the cause, including Paul McCartney, Billy Joel, Chris Rock, Adam Sandler, Mick Jagger and Bruce Springsteen, among others.

The benefit ended up raising $30 million for relief efforts.