This is 2 coats of China Glaze Bizarre Blurple.
Bizarre Blurple is a purple polish with overwhelming blue shimmer. I usually tend to shy away from these shades for they have a tendency to look cheap on me. But I LOVE this one.
Brand: China Glaze
Availability: I bought this a while back at my beauty supply on clearance. It's from the 2012 Halloween collection (I believe) but I've seen it still for sale online.
Price: I think I paid $8 for the 4 polish set but it retails for $6.49 (according to Sally's website)