I'm absolutely in love with Cobalt as it reminds me of a Nails Inc. polish (Baker Street) I've been longing for. I quickly swatched Wave and Teal for you and they're also very pretty. Wave was a bit streaky as it's a pastel shade so it needs three coats. I'm wearing Cobalt right now and am excited to wear Wave and Teal next.
Availability: $4 each or 3 for $10 @ Joe Fresh, large Loblaws stores, Real Canadian Superstore