Wet n Wild - Cost is No Issue
This is not a dupe for Deborah Lippmann's Mermaid Dream, but honestly I love this one so much more. Mermaid Dream always looks so... chunky. I've heard that it's actually smooth, but I don't care for how it LOOKS so bumpy and textured. So to me, this is Mermaid Dream's way more awesome sister - a wonderful, even more sparkly alternative! WIN.
I think it'd be very unlikely to find this one in stores anymore as it was released sometime last year, but Nails Inc Fitzroy Square may still be available (though a bit more expensive).