Notorious bachelor George Clooney may finally be ready to settle down after putting what appears to be an engagement ring on girlfriend Amal Alamuddin's hand. The two were spotted having dinner with a group of friends Thursday at Nobu in Malibu, Calif., and at one point, Alamuddin was seen showing off a ring to model Cindy Crawford. The news hasn't been confirmed by either, and Clooney's rep says he won't comment on the actor's personal life.