This is Pretty Serious A Christmas Time Paradox, which I believe was from last year's holiday collection:
on the final clearance page. So I'm thinking you might should act relatively fast. I don't think it's been in the clearance group for long so there might still be enough stock to last for a while, but who knows.)
It doesn't seem to be too far off from some of the other blue metallics I have - buuut I pulled up the picture below, which are the two polishes I was primarily thinking about, and the difference is pretty clear - Sweet Peacock and So Blue Without You are near-dupes to each other but not to A Christmas Time Paradox, which is more straight blue, while these two lean a bit more blue-green.