For a swoon-worthy look, opt of an ensemble inspired by turn-of-the-century style. Ivory silk taffeta fitted mermaid gown with matching jacket, $7,895, by Karl Lagerfeld for Mark Ingram. White gold and diamond earrings, $8,000, by Kwiat. "Estate Collection" gold, diamond and cultured South Sea pearl ring, $12,500 by Fortunoff. Beige satin jeweled pumps, $375 by Gaetano Perronoe for Té Casan.