Robert Pattinson engaged to Kristen Stewart?

Twilight star Robert Pattinson has reportedly proposed his girlfriend Kristen Stewart with an emerald ring.

Twilight star Robert Pattinson has reportedly proposed his girlfriend Kristen Stewart with an emerald ring.

Actor-Robert-Pattinson-and-actor-Kristen-Stewart-pose-on-arrival-for-the-world-premiere-of-The-Twilight-Saga-Breaking-Dawn-Part-1-AFP-Frederic-J-Brown

The 26-year-old actor is said to have splashed the cash on a "beautiful emerald ring" for Stewart and the couple are planning to wed later this year, reported Showbizspy.

"It's a beautiful emerald ring. He's a real romantic and loves to take an opportunity to remind her that she's the one. He gave her a ring because he adores her and wants to marry her," a source said.

"They want their wedding to be authentic, with soul. It's important for him that music be a big part of the wedding. He's writing a song for her and plans to perform it on the vintage Fender guitar she bought him for Christmas last year," the source added.