Eva Longoria just got back from her romantic vacation with boyfriend Antonio Baston, and we couldn't help but notice a gorgeous diamond eternity band on her left hand. It seems like this sparkler is a gift from her millionaire Mexican beau, but now we're wondering if it's an engagement ring -- or perhaps even a wedding band!

The 39-year-old actress spent the holidays in Mexico and Colombia with Baston, and on New Year's Eve she posted a photo of herself wearing a gorgeous white gown. It could just be coincidence, but Eva is notoriously private about her personal life, so it wouldn't surprise us if she eloped with her hunky boyfriend.

Eva and Antonio have been dating for over a year, and not only is he a total hottie, but he's a few years older than her, so out of all the men she's dated/married over the years, it seems like he's the best candidate for settling down!