Is Glee Star Dianna Agron Engaged to Alex Pettyfer?

Sources believe the two have been engaged for a while

Is Glee babe Dianna Agron engaged to her I am Number Four costar Alex Pettyfer?

People got possible wedding buzz going today, saying the gorgeous couple is planning to take their relationship to the next level and "they're very happy about it."

True? We're hearing yes...

Sources on the Glee set tell us they believe the engagement scoop to be correct.

"They've been living together for several months, that's around the time I believe they got engaged."

Apparently reporters recently noticed Agron sporting a thin, diamond ring around her left ring finger during a press day for I Am Number Four.

"Dianna doesn't talk much about her personal life, especially with her costars, but she has told a few close friends that she is engaged to Alex," explains our insider.

"There definitely hasn't been lots of wedding talk or anything."

Wonder if this is more of a commitment/promise ring than a proposal? Perhaps mixed in with good timing to get us to the theater to see their cute chemistry onscreen in I am Number Four when it comes out in a few weeks?

Either way, friends of the couple don't seem to be shocked at the possible wedding news.

"We've thought she's been engaged for a while."

We have reached out to reps for Dianna and Alex, but have yet to hear back.

Congrats you two! We think?