I love seafoam green granite. it is sort of silvery green/blue with little blackish/brown specks, more uniform and less movement.

I currently have wild sea granite in my kitchen. my wild sea has more movement than sea foam and is more brown/green.

Here is a link that might be useful: sea foam green

Here are some ideas...

Costa Esmeralda

CE

Verde Maritaka

seafoam green granite

Blue Bahia

Azul Macaubu (Quartz)

Verde tropical

forest green

Luna Pearl

Blue Pearl

Amazonian

ubatuba (green)

Verde Fontaine from Dimensional Stone Co.

Verde

Not sure on these granites in the images below but
thought you might enjoy seeing white, green (blue, gray)

This is Kelleg's kitchen from Gardenweb

Cabinet Solutions Virginia

Alpern Kitchen

Gogo Stone (not sure which granite this is)

Wow - thank you sooooooo much !!!!!

I also would have said Costa Esmerelda. I just picked it after 3 weeks of granite shopping. I thought this would have taken a day or so :). The slabs I picked are blue green. CE can vary allot. I have seen it a 5 different yards and all were different coloring. I needed large slabs so lucked out that the importer that had the unusually large size CE also had the nicest. Counters being cut now and hopefully an install on Wed

We have seafoam, and it's a sagey type green, not real yellow. For a bluish-green, I agree with the other posters that Costa Esmerelda might be the right choice for you. It varies a bit, with some slabs being more blue, and others more green. The pattern on the Costa seems to be more muted, kind of like a watercolor painting (not sure if that makes sense or not?). It doesn't have real dramatic contrasting rivers of color. It's very pretty, and it was going to be our back-up choice if we hadn't found the seafoam we were looking for.

Hope you find some lovely slabs.

Todds: I would love to see pics when it is in! Also would you be willing to share what it cost per sq ft installed???

Here are a few granites that might fit your needs. These are all at a (for me) local stone yard that has a great inventory. I've seen most of these in person.

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The above is likely what we'll use in our master bath. Their current slabs are more colorful than the one in the photo (ditto for the remnant we found at our fabricators) so this granite, like other granites, does vary. The slabs they have in now are a mix of watery blues and grayed greens with little flecks of black. Don't know what your budget is but this granite is on the lower end of the price range, as is Coast Green. Costa Esmeralda is two tiers up in price in my area.

I have Costa Esmeralda granite and it is in that grey, green family. It's
very neutral and goes with everything. These are pictures from a few years ago at Halloween.

Search for gglks kitchen, she has a great one with costa. I felt like it had that blue grey color.

I have Madre Perola quartzite that is a lovely green/gray/taupe. It's lighter than some of the examples above. Take a look at Pipdog's kitchen for a better idea. Might work for you.

In terms of blue-ish/greenish granite by far the nicest I've ever seen was a leathered slab of "golden lightning". Almost swayed me away from the Madre Perola. It was spectacular and may work with your vision.

Here is a link that might be useful: golden lightning granite