Dianna Agron arrived at the 2012 Met Costume Institute Gala, which was held on Monday night (May 7) in New York City.

She looked lovely wearing an aqua-green silk chiffon layered gown with a v-neck by Carolina Herrera.

Dianna accompanied her gown with a matching belt for a defined waist, jewelry by Fred Leighton, and a sparkly clutch by Judith Leiber.

A wavy updo, dark eye makeup, a pink lip shade, and metallic peep toe pumps by Sergio Rossi completed her look.

Buy It:

Sergio Rossi Metallic Patent Leather Cachet Pumps at Saks Fifth Avenue

Similar gown by Carolina Herrera:

Carolina Herrera Hand-Painted Silk Organza Gown at Bergdorf Goodman