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Carey Mulligan

Andy Athineos/INFphoto.com

She can't blame a music video for this.

Carey Mulligan was seen anticipating a friend's arrival at the Sydney Airport in Australia yesterday, and if you take a closer look, there seems to be a sparkle coming off of that ring finger.

So now we must ask, is that rock on the Mumford & Sons' lady a diamond ring? Or a ring with diamonds?

Obvs, a diamond ring means an engagement whereas a ring with diamonds is just that, a fancy-schmancy piece of jewelry that sparkles.

Rumors have been buzzing for quite a while that this Brit is indeed tying the knot, but her camp is staying mum on the situation, which is kind of annoying. Hey, if she's going to flaunt it, then we'll take it.

The Great Gatsby starlet has been linked to singer Marcus Mumford since March of this year, but things heated up quickly.

The 26-year-old left her base in New York City to live in the U.K. with her new honey shortly after their relationship went public.