It's China Glaze - Millenium, and it's one of the first China Glaze polishes that I ever bought.
It has that foil finish to it that a lot of other metallic polishes don't have. It's not just super shimmery with a faux effect, it really looks smooth. When I first got it, it reminded me to the Minx nails that so many celebs were doing at the time.
When I think of metallic, I think of robots, so I grabbed this cute necklace that I got from Forever 21.