So pretty, this strapless sweetheart long white prom dress 7435W from Ladivine by Cinderella Divine is ready for twirling. With a long a-line skirt that flows with every move you make at prom, weddings, and other formal events, this strapless long white evening gown is surprisingly affordable, at under $200. The gorgeous strapless long white formal dress has a sweetheart bodice with a triangle-shaped cut-out that adds a flirty vibe. A great find for the bargain-hunting bride, this strapless sweetheart long white prom dress is ready to captivate the night.