Blake Lively and her new husband, Ryan Reynolds, stepped out to celebrate Chanel's 80th anniversary of the Bijoux de Diamants fine jewelry collection in NYC Tuesday. Blake wore a backless silver dress for the occasion and accessorized with her new diamond engagement ring. She mostly kept her hands in her pockets on her way into the event, though her sparkler did make an appearance. Blake and Ryan Reynolds have been married for a month now, after tying the knot in South Carolina last month. She's since returned to work on the final season of Gossip Girl, which debuted Monday night; check out the top OMG moments from Gossip Girl's premiere! Blake had even more to celebrate, since she and Ryan attended pal Amber Tamblyn's wedding in upstate New York over the weekend.