Gilbert Flores/Celebrity Photo
07/29/2004 at 10:00 AM EDT
Singer Brandy and NBA star Quentin Richardson are engaged, PEOPLE has learned exclusively.
The Chicago-born L.A. Clippers guard, 24, surprised the Mississippi-born former Moesha star, 25, at a private reception at L.A.'s Century Club attended by both of their families and close friends on Tuesday.
Sweetening the surprise: rose petals decorating the club – and a diamond ring totaling 11 1/2 carats valued at $1 million.
Jeweler Jason Arasheben spent months designing the unique ring – and finished it only 30 minutes before the proposal.
"It was a total surprise for her," says Arasheben, who has designed custom-made jewelry for the likes of Ashton Kutcher and Michael Jackson.
The couple have been dating about nine months. "He is a great guy for her," Brandy's
mother, Sonja Norwood, recently told PEOPLE. "I can see the happiness in her."