It is an open stock polish and not from a collection.
Pictures are 3 coats with Seche Vite topcoat. I suggest 3 coats to be opaque. I found the formula to be a bit streaky even at three coats.
This is a currently available polish from Zoya.
Piper by Zoya can be best described as a warm medium soft pink with subtle mauve and tan undertones in a pigmented creme base. A soft nude that isn't too sheer for a natural look that's especially pretty on dark skin tones.
Color Family - Pink, Nude
Finish - Cream
Intensity - 4 ( 1 = Sheer - 5 = Opaque )
Tone - Warm