James Bond star Daniel Craig is set to wed his longtime girlfriend Satsuki Mitchell, as soon as wraps up filming his current 007 movie, "Quantum Solace."

"He asked her to marry him, and she's been showing off a very beautiful Cartier ring," a source told The Sun. "It has a large diamond solitaire with a platinum setting." Twenty-nine-year-old Satsuki has apparently been spotted wearing the rock on a visit to her beau on the Panama set of the new Bond film in Central America. The couple got engaged last summer during a romantic trip to Italy.

Although Craig's rep isn't commenting on the rumors, the source said the two lovebirds, who met in 2005 on the set of psychological thriller The Jacket, are " are now stronger than ever. They're planning an intimate ceremony for close family and friends. They make a great couple."

The actor, who has been married before and has a daughter, recently proclaimed the secret behind his successful relationship is hard work.

"Relationships don't take care of themselves. Romance is fine but it's not about expensive hotels and beautiful locations - it's about being with the right person and feeling close to them. Being in love takes a lot of work," he said.

"I have a huge respect for women, which I've learned from my mother and my sister, but that does not mean I haven't made mistakes," he added.