Vanessa Hudgens Instagrammed THIS photo from the Unicef Summer Gala Presented by Luisaviaroma.She is wearing the Carolina Herrera Ruffled Polka-Dot Satin Gown. Buy it HERE.Get the look for less here:#VanessaHudgens #UnicefSummerGala #Luisaviaroma #polkadots #polkadotdress #polkadotgown #CarolinaHerrera