This is one of the first holo polishes I ever purchased, and it has remained, probably my favorite of all time till this day. I even recently bought a back-up off of eBay. It's OPI DS Original. It is a tad sheer, and I had already had China Glaze LOL, another super pretty purple holo on, so I just layered 1 coat of the OPI over that.
Isn't it AMAZING??? I love this over black as well, but I wanted to have more of the actual bottle color this time.