A ribbon corset makes this lace-and-silk-organza gown a standout, about $6,125, by Saison Blanche Couture, saisonblanche.com. Veil, $420, by Nelson D'Leon, 212-563-9879. Flower pin, $585, by Regina B., reginab.com. Citrine, emerald, and topaz earrings, $870; citrine, peridot, and tourmaline ring, $990, both by Iradj Moini, at Mariko, NYC and Palm Beach, FL. Platinum-and-diamond (1.15-carat) ring, $17,838, by Doris Panos, dorispanos.com.