From the Chanel dinner for the Tribeca Film Festival, to the the 6th Annual DKMS Gala, to the Pratt Institute's tribute to Fern Mallis, to The Society of Memorial Sloan-Kettering Cancer Center and Gucci's 5th annual spring ball and beyond, New Yorkers pulled out all the fashion stops this week. Check out the trends we spotted and snapped while we were out on the town.