She isn't in "Twilight," but this vampire actress is still sparkling ... thanks to her new engagement ring!

"The Vampire Diaries" star Candice Accola announced she's engaged after her boyfriend (a guitarist for The Fray) Joseph King popped the question.

"Cheers from the future Mr. & Mrs. Joseph Aaron King," the 26-year-old posted on Twitter yesterday -- revealing a photo of the couple and another of the gorgeous new ring.

The two are currently touring Italy. No word on if that's where King proposed, but seems like a pretty romantic spot to us!

Moments after sharing the big news, costar Nina Dobrev couldn't help but joke.

"What colors are we thinking for the bridesmaids dresses? Because yellow isn't a good color on me," she tweeted.

Congrats to the happy couple! 

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