Versace's pre-fall 15 collection color palette is quite exquisite with a sleek, posh and modern look. I'm really drawn to the cobalt and black theme. Here's a nail tutorial that plays with both colors and diagonal detail.
1. Start with an off-white polish.
2. Paint blue diagonally (if you can't freehand, a tape would do the trick).
3. Outline the top portion with a black striper.
4. Fill in black polish and you're done!