Wowwww! Ok, so this is only two different polishes. Sparkly Teal and Glittery Purple. This is done by layering. Paint the entire nail teal. Then, layer on the purple starting approximately 1/3 of the way up the nail from the cuticle. Split the top 2/3 of the nail into four sections and those become the starting points for each layer of polish (see below). As you paint each layer of purple it creates a deeper, richer purple. Fucking rad yo!
If any of you try this, send me pictures por favor! I'll update with some pics when I do mine.