Maybe it's because I'm a redhead and I've heard from a young age that green was "my color" (even though I think I look better in blue) I've always had a connection with green. According to Pantone, "Symbolically, Emerald brings a sense of clarity, renewal and rejuvenation, which is so important in today’s complex world." But the choice could have been made for them on the runway. The shows of Stella McCartney, Akris, Gucci, Kenzo, and Burberry all showcased the dramatic jewel tone. Pantone's site also mentions Tracy Reese, Nanette Lepore, Barbara Tfank, and Marimekko as taking part.
Here's some real life Emerald inspiration, from the vaults of Vita.mn's street style page: