For whatever reason, when I wear Fairy Princess by Sonia Kashuk on my nail I feel so damn classy. It's this subdued mint green with blue shimmer that shows up when the light hits it. You can see that effect in the bottle in the photo above. The formula is great too! It dries reasonably quick and not streaky at all.
You can find this shade on the Target website! It retails for $4.79.