Kristen Bell  was glowing in a black, body-hugging, one-shoulder gown at the InStyle/Warner Bros. Golden Globes party. She let the dress do the talking by adding only black heels and a matching clutch. Her fresh-faced makeup went well with her crisp and clean look. Ms. Bell's pièce de résistance was her fancy-colored, three-carat, emerald cut diamond ring from fiancé Dax Shepard. To mimic Kristen's monochromatic red carpet elegance, shop now.