Newly single Sofia Vergara looked anything but heartbroken at a charity luncheon yesterday at The Plaza. Vergara arrived sexily solo for the National Women’s Division of the Albert Einstein College of Medicine’s annual Spirit of Achievement luncheon in sky-high heels and a chic navy-and-white dress.

PHOTOS: SOFIA VERGARA

Vergara — who we exclusively reported has split from wealthy boyfriend Nick Loeb
— was a guest of celeb jeweler Lorraine Schwartz, who was honored. The “Modern Family” star looked happy chatting at a table with Tina Knowles and Kyle MacLachlan before a Randi Rahm fashion show. “Sofia was talking about being a mom, and how balancing being a mother and working is all about knowing how to delegate,” said a spy. MSNBC’s Willie Geist was emcee. We revealed yesterday that Vergara and Loeb have split after more than two years together, following a series of arguments. On Monday, Vergara attended the Met Ball alone and then partied at the Top of the Standard with friends including Jessica Alba.