Sofia Vergara, most famous for playing "Modern Family" vixen Gloria, is engaged to on-again/off-again boyfriend Nick Loeb -- and she has the (gigantic, sparkly, stunning) rock to prove it.

Loeb, a Florida businessman, is said to have proposed to the Colombian actress, who just turned 40, on Monday, while the pair were exploring Mexico on a vacation. Judging by the size of Sofia's new sparkler, we wouldn't be surprised if Loeb found it among the Aztec ruins -- that's a heck of a lot of carats.

The marriage will be the second for Vergara, who has a son, 20, from a previous relationship. (Fun fact! Did you know she's a natural blonde?)

Check out the bling below! Looking at pictures of Vergara never gets old to us, for some reason.

PHOTOS:

sofia vergara

sofia vergara ring

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  • She's gorgeous

    Sofia Vergara, at an award ceremony, gives a flirty grin to the cameras.

  • She's a fashion designer

    Vergara appeared at a Kmart department store to introduce her new Sofia by Sofia Vergara Collection which launched this past September.

  • She's TV's hottest mom

    Here on the set of Modern Family, where Vergara plays Gloria, the loud sassy Colombian with the hot bod. So, uh, essentially she's playing herself right?

  • She's a winner

    Vergara poses in the press room after winning the award for Outstanding Supporting Actress in a Comedy Series for 'Modern Family' at the 42nd NAACP Image Awards.

  • She's a movie star

    Vergara played the live-action character Odile in the "Smurfs" movie.

  • She makes diet soda look good

    Vergara was the face of the Diet Pepsi commercial with David Beckham. To watch the commercial<a href="http://www.youtube.com/watch?v=yz8_Snbm-hU&feature=fvst" target="_hplink"> click here. </a>

  • She's a caring mother

    Vergara poses with her son Manolo for a "got milk?" campaign in Los Angeles.

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