Diamond Dress from Mini to Floor Length Wolddress Open Back Mini Dress In Diamond Sand Diamond Dresses Mew Mews Pink Floral Open Back Mini Dress Gabi Swimwear Diamond Dresses: Shine Bright with Stunning Evening Gowns CATCHALL. Model wears a size XS. Material: 95% Polyester,5% Spandex A plunging V neck, halter neck, and crystal accents on the under bust, waist, and hips. Made with shirred fabric, has an invisible back zipper with a secure hook and eye closure. The diamante trim varies.