collistar's grafite lacca, from their carisma collection for autumn 2011, is one of my favourite polishes ever. i got it as a present and simply love it!
this is the only collistar polish i own, and the one my friends used to borrow a bit too often. it has a brush similar to opi's, so it works awesome for me. the shade is the most perfect muddy of all times, just the right mixture of beige, taupe, grey with a dash of blue.
formula is awesome, because everything abut this polish is awesome. i think i will never ever get to it's last drop (and i am approaching that stage) but i will continue preserving it and looking at it for the whole eternity.