Admittedly this polish isn't black and blue, it's more of a blue-black. 'Love Letter Blue' by Umberto Giannini was released as part of the Painted Lady collection for Christmas 2012; I bought it on Boxing Day and like the nail wraps, it's led untouched while I've been at uni. On first application the colour is probably more akin to OPI's Russian Navy in tone, but with the added layers (for durability, the colour was opaque in one coat), it's become very dark. Which I like, but it would have been nicer a little bluer! Maybe I should wear less layers and repaint more, but I'm lazy!