Cover Girl - Midnight Forest
I don't like spending $25 on polishes (I only made one exception for Paradoxal because I found it unique and beautiful enough to justify the price), so I don't have Black Pearl to compare it to. I was using Michelle's photo here on All Lacquered Up for comparison purposes, and I think they are very close!
Another thing to note is that this is NOT big 3 free. It contains Dibutyl Phthalate.