By Sharon Clott Kanter
Updated May 08, 2012 @ 9:20 am
Credit: Dara Kushner/; Matt Baron / BEImages

Carey Mulligan attended last night's annual Metropolitan Museum of Art’s Costume Institute Gala on the arm of her new husband, Marcus Mumford of the band Mumford & Sons. The British newlywed chose a glittering gold and silver paillette-covered dress by one of her favorite designers, Prada. Not only is the label one of two honored by the esteemed museum this year, she also wore a custom Prada gown for her wedding in the English countryside two weeks ago. The only thing that glittered brighter than her dress was her diamond engagement ring, which featured a blue diamond or sapphire gem on either side, and gold wedding band, shown here for the first time since the pair tied the knot.

See more celebrity rings in the gallery!