Guerlain La Petite Robe Noire Eau Fraiche - In La Petite Robe Noire��s perfume wardrobe, I am the new Petal Dress. A perfumed creation by Guerlain: An Eau Fraîche in which sparkling mandarin, rose petals and biting pistachio set hearts a flutter. My legendary glass bottle �� instantly recognisable by its rounded shoulders and stopper in the shape of an upside-down heart �� reveals my new style of dress. Sketched in black ink, my low-cut Petal Dress is beautifully set off by translucent glass with a soft green lacquer.