Speculation has mounted that Dominic Monaghan has plans to propose to his girlfriend Evangeline Lilly, after he was seen shopping for rings in Beverly Hills, California.

Since meeting on the set of hit US TV show Lost, the screen stars have worked hard at keeping their romance low-key, but now pals say plans are in the pipeline for them to exchange vows.

During time away from the programme's Hawaii set, British actor Monaghan was seen looking at diamond eternity bands at a number of upscale jewellers on Rodeo Drive.