RHONY veteran, businesswoman, and philanthropist Jill Zarin's fifth annual Luxury Luncheon to benefit the International Thyroid Oncology Group (ITOG) was held in the Hamptons last weekend, attended by an impressive crew of Real Housewives from all over the nation including LuAnn D'Agostino, Ramona Singer, Tinsley Mortimer, Cindy Barshop, Gizelle Bryant, Marysol Patton, Kelly Bensimon, and many more.