Satin - this gorgeous dress is made of satin, almost definitely silk satin charmeuse. Satin, however is not a fabric, it is a weave. Satin is created by weft yarns which float over 4 or more warp yarns, resulting in the signature sheen associated with satin. Silk and synthetic fibers will create much shinier satins than say cotton (which can be, and is, used in satin weaves), and is usually what people are referring to when they say satin, though sometimes they really just mean to say silk.
Style No. 213260 ~ Dalilia, Wedding Dresses 2013 Collection - Allover embroidered lace, tulle and sequin over satin A-line wedding dress with hand-beaded illusion tip-of-the-shoulder slight cap sleeves and V-neckline over a sweetheart bodice, beaded illusion deep scoop back bodice, sparkling sequin spills down to scalloped hemline and chapel length train. The Berger Collection for Mon Cheri headpiece style 9468 sold separately.