Nicole Richie attended the Carrera Sunglasses Escape rooftop celebration held at the penthouse of the Chateau Marmont hotel on Saturday night, July 10, in Los Angeles.Miss Richie looked gorgeous in a white dress from Topshop paired with her Simone leather jacket and House of Harlow 1960 jewelry - three stack rings, the enameled tribal wrap ring and three stack bangles.Nicole and Monet Mazur. In