Jennifer Aniston: Hiding Her Engagement Ring?

By Dahvi Shira

08/20/2012 at 03:00 PM EDT

Jennifer Aniston happily shared her engagement news – but she hasn't been so forthcoming about the ring she received from Justin Theroux.

The newly engaged star, 43, seems to be playing peek-a-boo with her ring as she was photographed leaving a movie theater in North Carolina, where she is filming the movie We're the Millers. In the photos taken Friday, she mostly keeps her left hand hidden in her pocket, but in one shot is seen wearing a simple gold band on her ring finger.

But is the plain band the same ring she accepted from her fiancé when he popped the question on his birthday earlier this month? Has she turned the bauble around to hide a diamond or is it really a simple band?

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According to a source, Theroux, 41, helped design the ring with a friend who is a jeweler, which suggests something more elaborate than a gold band.

Reps for the couple are staying mum.

So for now, fans will have to wait for the ring to be unveiled.