(Photo Credit: PacificCoastNews)

Amid reports that she is engaged to her French 44-year-old banker beau, Mary-Kate Olsen stepped out in New York City with a huge ring on "that" finger.

The 27-year-old actress-turned fashionista has been seeing Olivier Sarkozy, the brother of former French President, since 2012, when the lovebirds were spotted smooching at a New York Knicks game.

The ring Olsen was seen with yesterday is gold with a huge circular diamond in the center. To see it, Click Here.

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It seems the couple's noticeable age difference hasn't stopped the pair from possibly taking their two-year union to the altar. They already live together in New York.

Mary-Kate Olsen and Olivier Sarkozy attend the Dallas Mavericks vs New York Knicks game at Madison Square Garden on Nov. 9, 2012 in New York City. Credit: James Devaney/Getty Images

Sarkozy, the managing director of global asset management firm, the Carlyle Group, already has two kids from a previous marriage. Olsen has never been married.

Meanwhile, Mary-Kate's twin, Ashley, is also reportedly cozying up to an older man - 47-year-old " Moneyball" director Bennett Miller.

Speculation remains about placements in a possible Olsen bridal party, especially with youngest sister, Elizabeth's, recent revelations that Mary-Kate is not her favorite twin!