According to news sources, Arpad Busson , chairman of the $15 billion hedge fund EIM SA, and actress Uma Thurman have announced their engagement. Busson gave her a diamond ring so big "she can't fit it through the sleeve of her coat" at Elton John's 10th White Tie and Tiara benefit in Windsor, England.

A friend of the actress said: "It was a really old-fashioned romantic gesture. It's a done deal. They're already planning the wedding."

Thurman, 38, has been previously married to actor Gary Oldman and has 2 childeren with Ethan Hawke. Busson, 45, has two sons with supermodel elle macpherson.