Yuna

 This is Zoya Yuna:

This is a pretty unusual polish. Zoya's description: "a full-coverage warm grey with copper and gold liquid metal." This is from the Ignite collection which I think was in 2014. I really don't remember seeing anything else like this, certainly not from a mainstream polish.

(I was talking the other day about picking and choosing polish, and how I only very rarely buy full collections. I didn't buy the Ignite collection all at once, but I have gradually gotten all six of them. This is the set with Sansa, India, Teigen, among others.)