OPI Unripened from their Halloween collection for 2010 is an inky black blue with sapphire, turquoise and purple shimmer. It is available in full size bottles as well as in the Go Goth set of minis, but I haven't seen many full size bottles in stores or at e-tailers. So... if you thought that Unripened was the best out of the mini set (which I do) and are having a hard time fining a full size, here is a a good alternative for you.
Sinful Colors What's Your Name(#813) is almost an exact dupe. I think the OPI has a slightly nicer formula and coverage, but at $2, why not? OPI Unripened looks more shimmery and like it has more duochromes, especially in the bottle. But as I said in my review, Unripened doesn't translate on the nail as it looks in the bottle.
Sinful Colors What's Your Name is available at Cherry Culture .
OPI Unripened (left) vs. Sinful Colors What's Your Name (right)