I have seen this technique everywhere since I started doing my nails, and I finally got around to trying it for myself. What it is is a design painted with glossy clear paint over a matte polish. For this manicure I used my regular top coat to make the glossy designs. Using top coat was just a little bit tricky because it dries fast, so you have to work quickly. Its a pretty neat look, but I just wish the design was a bit more prominent.
The purple is Zoya Savita, and the Grey is Zoya Dovima.