Margaery Tyrell "Game of Thrones" (Natalie Dormer) (TV)
Wedding gown costume worn by Sophie Turner playing Sansa Stark in "Game of Thrones." Season 3, episode 8, "Second Sons." Screen capture. You can barely see the button at the waist where the right panel attaches to the left.
Perfect combination! Cersei's dress is always posh, much like her status