Flat Iron Green is one of the new permanent NYC colors, and One of a Kind is part of the same display that Milani has Dressmaker in.
And even more proof...
L-R: One of a Kind, Flat Iron Green, One of a Kind, Flat Iron Green
That's not shimmer on my ring finger... I don't know what that is, looks like a smudge. They are pretty much identical. Both are super dark green cremes that look almost black, all the time. The only differences are in application and formula. One of a Kind took three coats to become opaque and not streaky, while Flat Iron Green only two coats. One of a Kind had a slightly more jelly like formula which probably why it took one more coat to get even. If you want to try one of these, I would definitely reccomend Flat Iron because it is cheaper, only $1.99 where as Milani is $4.49, is permanent, and application was easier! ALSO, these two remind me a lot of Sephora by OPI Dark Room that I also have.... And you know what makes me even crazier?? I absolutely HATE polishes that look black when they aren't black.......... hahaha I think I'm just on a hunt for a really nice super dark green creme that doesn't look black all the time.
Does anyone else have nail polish phases like I currently do?