OPI Siberian Nights is a very dark, vampy purple from the Fall 2007 Russian Collection. As a Russian major, that whole collection ranks among my favorites. In low lighting Siberian Nights is almost black, but in the sun you can see it's a rich, glossy plum. This is a swatch with two coats and no topcoat. The formula is very easy to work with.
I added one layer of Zoya Mimi to this swatch. Mimi was part of the Zoya Sparkle collection from Summer 2010. It's a glorious, vibrant purple glass fleck.
These pictures really don't do it justice!