Sinful Colors Open Seas (2 coats)
OPI Mermaid Tears (2 coats)
Did you decide against the OPI Pirates of the Caribbean collection that came out a few months ago? I purchased most of the collection and I can almost kick myself because Sinful Colors came out with a collection that looks a lot like the OPI polishes. You may remember one of my favorites called Mermaid Tears, and as you can see from the photos, it looks eerily similar to Sinful Colors Open Seas. They are both dusty green polishes with a hint of blue. I don't think I can call them exact dupes though since Open Seas is a bit greener and Mermaid Tears has a bit more blue. I can honestly say that both are quite lovely, but when taking price into consideration, I'd have to go with Open Seas. Despite being a drugstore brand, the application and formula was wonderful.
I found the collection at my local Rite Aid after looking a few times at Walgreens. They retail for $1.99 and periodically go on sale if you can hold off that long.