Best Dressed: Black and Blue Starring Cecilia in Givenchy, Kristen in Prabal, Rachel in Peter and More

Click through to see Kristen, Rachel, Cecilia, Julia and Liv all looking gorgeous in blues and blacks.

Cecilia Dean is perfection in Givenchy, while Kristen Stewart gets it right with a Prabal Gurung mini-dress. Overall, a cool palette this week. Cooling down for the hot-hot summer, perhaps?