This is Color Show Amethyst Couture, from the Brocades collection:
Anyway, what I'm getting at here is, this was the first one I bought, and I don't really love it. It tends to just kind of look like sludge on your fingers. The shiny bits all seem to hide. I really wanted to like this, and so I was fairly disappointed by that. Later on I found Black In Mirrors, and it's better - and there was a red one that I've always wished I bought, which I don't remember the name of. This one, I could've done without, and that's a shame.
(I made a new tag just for this: "disappointing polishes." I'm sure I can find some other things to add that tag to!)
Added: previous discussion of this polish