Leonardo DiCaprio and Bar RefealiLeonardo DiCaprio's girlfriend Bar Refaeli may have been seen wearing a ring at a dinner in Germany with the hunky movie star, but the pair aren't ready to walk down the aisle yet.

DiCaprio and Refaeli attended the Cinema for Peace Gala 2010 in Berlin over the weekend, and the supermodel sported a sparkly ring on her left hand. However, a source close to the couple says that they aren't engaged, EOnline.com reports.

The pair have been dating on and off since 2005.