This is beautiful but very close to Models Own Aqua Violet but not a 100% dupe. The blue is stronger in this one. Much like The Force. It is closer to Sally Hansen Turquoise Opal than Aqua Violet but Turquoise Opal is a bit more complex. I like it but I do like a good duochrome. It is very vibrant and shimmery. Three coats since it is on the thin side but I expect that from duochrome polishes. You could easily layer it over a black or dark teal.
I bought this at Barneys and it is available online.