Thurman engaged to Arpad Busson

Uma Thurman is engaged to Swiss boyfriend Arpad "Arki" Busson.

Stephen Huvane, a representative for the actress, told People: "I can confirm she is engaged."

Thurman reportedly received an eight-plus carat engagement ring from Busson.

"It's the most beautiful piece I've ever seen," a source is quoted as saying. "Arki did a wonderful job."

Thurman was previously married to Gary Oldman and Ethan Hawke, with whom she has two children. Busson, a hedge fund financier, has two sons from a relationship with supermodel Elle Macpherson.