Obsidian is a cool black nail polish with a very subtle touch of hidden shimmer. It's cooler toned and a bit smokier than a plain black creme polish, and it has a bit more dimension. This polish is opaque in one to two coats. On its own, the polish dries to a satiny finish, not truly matte, but not glossy.

The last photo shows what Starlight Polish 15mL and 7.5mL bottles look like.