In Nicole's closet: Gabriela Hearst

Nicole Richie turned 41 on September 21 and, on September 24, she celebrated with her friends and family. 

To her birthday party Nicole wore Gabriela Hearst's "Oskar" dress with an off-the-shoulder neckline and asymmetric cutout waist (currently available on net-a-porter.com).

photos: instagram/tesskemper/carlosericlopez