Dianna Agron & Alex Pettyfer Engaged?

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Is Glee beauty Dianna Agron getting married to her I Am Number Four co-star Alex Pettyfer?

According to Us Weekly, Dianna, 24, and Alex, 20, recently got engaged after less than a year of dating. The two first met on the set of their new film, I Am Number Four, which hits theaters on February 18. However, reps for both Agron and Pettyfer have come out denying the claims, telling Access Hollywood that the story is “not true.”

People became suspicious about the nature of Dianna and Alex’s relationship after the actress was spotted wearing a diamond ring on her wedding ring finger at a recent event.

The good-looking pair have been private about their relationship but Alex did gush to Ellen DeGeneres about his pretty co-star when he appeared on Ellen last week.

“She is an amazing woman, and she’s got this old school, classic movie-star elegance to her,” Alex said of his sweetie. “I’m just very happy in my personal life.”

For her part, Dianna has remained mum about her relationship with Alex.

“I have been getting a lot of questions about things that I don’t feel the need to explain or talk about,” Dianna wrote in a recent entry on her Tumblr. “I don’t mean it as an insult, I’ve just never shared private details of my personal life to promote my career or a project that I am working on. To me, it feels like cheating.”

“Totally understand if there is interest, but I find I am more interesting on screen,” Dianna continued. “Do you think that we as people are only defined clearly if paired with someone else? Or if every single detail of our lives are laid out on the table?”

Watch Alex and Dianna give each other love eyes in the I Am Number Four trailer below.

Do you think Dianna and Alex are really engaged? Share your thoughts in the comments.