Julia Stiles Is Engaged -- See the Beautiful Ring!

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Julia Stiles is off the market!

The 34-year-old actress announced via Instagram on Monday that she is engaged to her boyfriend, Preston J. Cook.

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Stiles shared a close-up photo of her hand intertwined with that of her now-fiancé in front of a beautiful beach sunset, but all of our attention was naturally focused on the gorgeous diamond ring on her finger!

"Best Christmas Ever!" Stiles captioned the pretty pic.

Stiles first met Cook, a camera assistant, when they worked together on Go With Me. Cook recently worked on the Leonardo DiCaprio film, The Revenant.

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Congrats to the happy couple!

Check out the video below to see the biggest and best celebrity rings of all time!