I slapped on Zoya Ivanka on the way out the door the other day. I'd already swatched Ivanka (but haven't posted it yet; assuming I keep going around the color wheel, it'll be a while on that) so I knew it was going to be really pretty, and of course it is.
Zoya talks about "mermaid green" as well, and that's because it has a good dose of blue-green in there somewhere. It reminded me of She's Beyond Kelp! actually - the blue-to-green shifting flakie.
(I'm not saying anything about who Ivanka might be named after, because that would involve the T-word, which I avoid at all costs. It makes my blood pressure go up.)