Nail polish trends go in cycles, much like fashion, so it’s always exciting when an old favorite comes back around. This fall we will be riding the metallic train with the sort of enthusiasm we usually reserve for Ben & Jerry’s or Veuve Cliquot. Forget basic metallics though – skip silver and gold, and hunt down jewel tones like metallic blue, purple, green, and copper. Jewel tones + metal = swoon. Long live heavy metal polish!