White tulle ball gown, about $6,600, by Angel Sanchez, at The Bridal Atelier, NYC; Saks Fifth Avenue, Beverly Hills; Ultimate Bride, Chicago; Stanley Korshak, Dallas. Pumps, $285, by Stuart Weitzman. Belt, worn as necklace, $825, by Valentino, at Bergdorf Goodman. Earrings, $375, by Chanel, 800-550-0005.
Frédéric's Tip: "With a strapless dress, a low chignon is gorgeous, and years from now it won't look dated in photos. Loosely curled hair in a half-up/half-down style is also very nice. It looks perfect with a veil or crystal-encrusted hair accessory."