Aqua Violet, 3 coats from the Beetle Juice collection. It was sheer on the first coat, but built up nicely in 3 coats. Like the name says, it has a strong aqua to violet duochrome. But those aren't the only colors I'm seeing. Turquoise, teal, light blue, periwinkle, purple. I can't stop looking at this polish. It's like a chameleon. But enough talk. I'll let the pictures speak for themselves.
I really wish my pictures did this polish justice. I got mine from Urban Outfitters on sale for $5 (retail $10). If you can't find it there, you can also purchase Models Own polishes from http://www.modelsownit.com.