Layering with Butter London's Knackered

Part of my new acquisition is Butter London's Knackered.

It's a beautiful true duochrome with holographic glitter in it that is a must have for layering. I personally didn't like it on my bare nails and was going to give it away. But then I layered it over black and was really impressed.

Of course I can't capture the duochrome in today's lighting- I'm stuck inside because of Hurricane Sandy! But you can see it in the bottle at the very least. I also can't really think of a true dupe of Knackered which is great considering I feel like so many colors this fall have had several repeats.

Forgive the chipping- I didn't use Seche Vite for this and that's the only top coat that prevents chips the day after a manicure is done for me.