Perfect for twirling, "Divine" pearl-encrusted tea-length dress with ribbon detailing, $20,000, by Reem Acra, reemacra.com. Silk-satin bow headband with short veil, $650, by Suzanne Couture Millinery, suzannemillinery.com. 18-karat white-gold and pavé-diamond ball earrings, $575, by Camilla Dietz Bergeron, 212-794-9100. South Seas pearl necklace, $12,000, by Francesca Visconti, francescavisconti.com. Pearl bracelet is model's own.