Carey Mulligan hasn’t exactly confirmed her engagement, but looks to me like the rumors are true!

A month ago – several sources confirmed to US Weekly that the actress, 26, was engaged to Mumford & Sons singer Marcus Mumford, 24. (PS: Awesome shot of Marcus below taken at the Crystal Ballroom in Portland, OR).

While sitting in the Sydney Airport in Australia on Wednesday, Carey showed off a beautiful engagement ring!

The future spouses — who were childhood pen pals in London — became engaged in August after five months of dating. “They’re a great couple,” a source told Us at the time. “Very sweet.”

Reps for both stars have refused to comment on their engagement.

Mulligan split with longtime beau Shia LaBeouf in October 2010; Mumford broke up with singer Laura Marling later that year.

They make the cutest couple! I love them both!!

PS: NEW Mumford album is on it’s way! They’re working on it now! Here he talks about working on a new album.

Source, Photos: INF