Throughout my life there have been times when a certain product hit the market that defined cool.  A product that was so unique that owning it was a one way ticket to the it crowd.  When I was 7 it was an American Girl Doll, at 13 it was a Tamagotchi, and at 16 it was a Nokia cell phone with an interchangeable cover.  At 31 its a Mignonne Gavigan necklace.  Seeing these beauties around the necks of some of my favorite Atlantans is a statement to the world that they know what's up.