Love is in the air and in the sumptuous fabrics of romantic fashions. Ivory silk crinkle-chiffon halter dress with beading, about $2,800, by Shannon McLean Bridal. Sterling-silver, white-agate and pearl necklace, $1,750; sterling-silver, white-agate and diamond ring, $1,400, both by David Yurman. White gold–and-diamond bracelet, $1,095, by Lizzie Scheck. White gold–and-diamond bangle, $8,440, by Roberto Coin. Ivory patent-leather platform sandals, $850, by Gucci.