This is one coat. It would work very well as a top coat.
You can see here how dense the glitter is and that it's all different shapes and probably sizes, actually. It's hard to tell because there is so much of it.
This was easy to apply too, for a glitter. It's chunky, you have to pay attention, and this won't dry smooth. That would be almost too much to hope for. It needs a good top coat over it to make it smooth.
How can you not have Happy Talons with something like this in the world?