Today I'm showing W7 - Purple Rain. I first bought it because I thought it was part of the duochrome Planet Collection from W7. I later realized that it wasn't but as you can see from the bottle it looks like it do have some duochrome range.
However on the nails there's nothing duochrome about it. It's hard to explain the finish of this, but I would say it's glass-flecked and warm purple toned. On my ring finger I've used 3 coats on my naked nail and on my other nails I've used a black creme base and 2 coats. As you can see there's some color difference but it covered better than I thought on its own.