Let me introduce you to Eyeko's Lilac Nail Polish. I got this polish as part of the Cult Classics collection... if you want to learn more about collection that check out this post
This pic was taken after 2 coats without any top coat.How gorgeous does it look!
I am currently looking also getting more of these in the colours rain, coral and posh (although those kinds of shades usually do nothing for my skin tone).
If you are interested in Eyeko... get yours from here
Edit: This polish lasted 5 days, with no top coat and I only have minor chipping on the edge of my nails. I am so impressed!