Looks like a Tyrell rose.
Give it to Margaery for her wedding GOWN.
Game of Thrones Season 3, Episode 2
in a beautiful GOWN of gold and
green brocade with fringed sleeves.
Game of Thrones Season 3, Episode 6
Cap and GOWN?
Why do I need a cap and GOWN?
The Big Bang Theory Season 8, Episode 22
That's a lovely GOWN, my lady.
Game of Thrones Season 3, Episode 1
Did they put her in the
red GOWN or the gold?
Game of Thrones Season 6, Episode 2