White not working for you? A black ball gown is a compelling change of pace. Fit-and-flare tulle dress featuring a sweetheart neckline, ribbon sash, and double-tiered skirt with Alençon-lace appliqués, $1,969, Tara Keely. Necklace (worn as a headband), Ben-Amun by Isaac Manevitz. Bangle, Ted Rossi. Ring, Ellen Himic. Ankle boots, Giuseppe Zanotti Design. Groom: Jacket, pants, shirt, and tie; all, Tallia Orange. Shoes, Magnanni. Ring, David Yurman.