Dark blue v neck tulle lace long prom dress, dark blue tulle evening d Vintage Blue and Black Prom Dress Evening Party Dress fg6948 formalgowns Royal Blue And Black V Neck Prom Gown Evening Dresses Strapless Black Ball Gown With Blue Floral Print 42436 Jovani Navy Blue Round Neck Tulle Sequins Full Length Prom Dresses US18 Custom Color Bob Mackie @arianagrande wears a vintage navy beaded and sequin evening couture gown by Bob Mackie. The design is fully embellished piece with a Instagram