I asked O-face about it a couple of weeks ago -
CND Effects in Sapphire Sparkle

I saw a picture on Pinterest and thought that the color was gorgeous.
http://www.lacquerized.com/2011/07/cnd-effects-sapphire-sparkle-beetle.htmlI agree with the review above - it applied really smoothly and I only needed one coat. I used it over a shimmery gunmetal from OPI. The end result was a shimmery/sparkily dark
purple/blue color. I should have taken a picture.
I think these would work really well for the folks who are nail biters. I usually don't like to have manicures because I feel like the polish looks awful after 2 days. (I'm rough on my hands.) This lasted for a solid 5 days and was starting to chip minimally yesterday. It was easy to remove (like typical polish as opposed to glitter).