Is Cara Delevingne engaged? That is the question fans are asking after the model turned actress flashed a huge diamond ring on that finger on Instagram.

In a photo taken by her Suicide Squad co-star Jared Leto, the 23-year-old is seen rocking a vintage ring while hanging out on a private plane with the cast.

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A post shared by Cara Delevingne (@caradelevingne) on

The blonde beauty did not caption the pic, but that did not stop her followers from assuming she is planning to wed her longtime girlfriend, singer Annie Clark, better known by her stage name St. Vincent.

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In a recent interview the British beauty opened up about her relationship and her sexuality.

cara delevingne st. vincent getty

"I think that being in love with my girlfriend is a big part of why I'm feeling so happy with who I am these days," she told Vogue. "And for those words to come out of my mouth is actually a miracle."

For a look at more stunning celebrity engagement rings, check out the gallery below!