Evening Dress, Madame Grès, 1950s
Lavender beaded tulle gown
eDressit 02149100 Sequin Tulle & Lace Sleeves Evening Gown http://thepageantplanet.com/category/pageant-wardrobe/
Reign, Adelaide Kane as Mary, Queen of Scots I'm really interested in the drape of her skirt. It looks like they skipped pleating the front for a nice dramatic effect.
Cate Blanchett as Elizabeth