It's a NYX nail polish in the color "heart". Here's a picture:
It's taken indoors, but close to a window (that's why there's so much light). I was going to take another one in natural light outdoors, but today it's a very sunny day where I live and it was too bright to even show a close color to the real one.
The picture I just showed you still looks a little bright; but just so you can get a closer thought about what it looks like, the color on the bottle is the right one.This one looks better (closer to real color) but since I wasn't happy with these, I took this other picture, in which you can see the color and the glitter:
Hope you liked it :)