I have no idea why I haven't tried this nail polish until now. It really is quite pretty.
This is Revlon's Heavenly over a black nail polish base. Heavenly consists of holo-gold hex glitter and holo-blue square glitter in a clear base. The glitter aren't opaque so they do look better against darker colours.
Lovely, no? The nail polish gives the mani an electric blue sheen, while still being flashy and colourful. The bottle is quite densely packed with glitter too so two coats were enough to achieve the above look.