I'm a sucker for nail polish that resembles jewelry. My latest purchase are these Sally Hansen Color Foil. I especially love the "Sterling Silver" because it really does look like real silver foil, and the "Liquid Gold," a pale yellow 10k-like gold, which I find is more flattering on my skin tone than yellow-yellow 24k gold.
Here's a quick swatch (Sterling Silver on left, Liquid Gold on right):
Other than that, these are now ranking the top spot as my favorite nail polish this summer and beyond!
What nail polish are you sporting this summer?