LuAnn de Lesseps is engaged to businessman Thomas D'Agostino Jr.

The Countess is getting hitched! The Real Housewives of New York City star LuAnn de Lesseps is engaged to businessman Thomas D'Agostino Jr., her rep confirms to Us Weekly.

De Lesseps, 50, and her husband-to-be took the next step in their relationship over the weekend in the Big Apple.

"Thomas wanted to do the honor on Valentine's Day, but just couldn't wait and gave Luann an 8-carat canary yellow diamond ring. Luann is 'over the moon' in love with Thomas, considers him her soul mate and is so happy and grateful to have found love a second time," her rep tells Us in a statement.

"The two were introduced by their mutual friend and another RHONY cast member, Dorinda Medley, a few months ago and have been inseparable ever since," the statement continues. "The happy couple are celebrating jetting off for a ski vacation in Vail, Colorado, this week."

This will be the second marriage for de Lesseps. The Bravo vet was previously married to Count Alexandre de Lesseps from 1993 to 2009. The exes share two children, Noel, 19, and Victoria, 21.

Can't get enough of Us? Sign up now for the Us Weekly newsletter packed with the latest celeb news, hot pics and more!