This is an amazingly good ink. It's a beautiful blue that's easy on the eyes. It has very subtle shading which I really enjoy in an ink.

I love this ink, it works great in broad, medium and fine nibs for different results

GPC put a sample of this one in a random ink sample pack. First taste is free, they said. You know where to find more if you want it, they said. ... and now I'm giving all my money to GPC for my ink fix. Curse you GPC Team!*This ink is breathtakingly beautiful. Reminds me of a glacier lake. *Not really. I think y'all are wonderful. Please don't leave me.

I really enjoy using this color. It pops and has presence. I also found that it worked very well in one of my Lamy Al-star pens with a 1.5 mm nib, as I haven't experienced any loss of flow with that specific nib. If you are looking for a shade of blue out of the norm, this one is a mush have.

I'm using it on an extra fine nib on a white paper and I swear it almost glows. The swatch doesn't sell just how vibrant it is at least compared to some other blue inks I've got in samplers.

A friend gave me a bottle and i immediately inked my Edison Collier with a 1.1:stub. Gorgeous color, but stopped writing after a few lines. I cleaned the pen and tried again with the same result. I then tried it in an Esterbrook with a broad nib, a Lamy Al-Star with a medium, and a TWSBI 580 with a 1.1 � all with the same result. I ended up dumping the ink down the drain.

Great with fine nibs, but had some flow issues with thicker nibs ok clairefontaine paper. Amazing shading for its color. My writing like bright and cheery :)

After diving into fountain pens a few weeks ago and trying as many products (pens and ink) as my wallet can stomach, I've settled on this in a medium nib TWSBI Diamond 580ALR and its AMAZING. Love the color and the shading - it's an exotic enough blue to grab attention while still being functional for most applications (mostly work notes and my journal). Seems to behave well with little bleed through most of the admittedly poor quality paper I've used while still looking quite good.Also have a pilot metropolitan inked with Diamine Ancient Copper, another EXCELLENT ink, and the two colors really accent each other well. Having a blast, and Goulet Pens' amazing service has me excited to start this new hobby!

I love this color. It's stunning. The downside... it takes an unreasonable amount of time to dry. In a Write Notepads notebook, which has paper somewhat similar to Rhodia, I've had it sit for over an hour and still smudge. On a Mead Composition notebook, it's north of 30 minutes. I'm experimenting with diluting it, which helps. 1-2 drops of water added to a 5ml vial cut dry time down to 30 seconds initially, but if I don't use the ink in the pen up within a month or so (I have several pens inked at the same time), the dry times creep right back up. I'm not sure how much of this bottle I will end up using if I can't find the right dilution.

Wonderful blue pigment, however, need to wait a bit for it to settle

Simply the best blue. My favourite shade, im glad I came across it. I always called it electric blue because I thought of turquoise as more green. It shades a nice two tone and looks great with the crossing nines of cursive.

Got my first Noodler's pen today and tried this ink I have used up one fill up of Ahab in 2 hours, I love the shading on the ink, it did bleed through store bought college ruled books, that work well with Noodler's black/Namiki/Higgins etc. Works well on good paper.

Beautiful color, but it smeared on regular copy paper, on Rhodia 80g paper and onto my hand - I write left handed - almost every time I used it. Finally, I gave up using it.

I have been testing different inks in the same pen, each one after a thorough cleaning. Out of the five Noodler's inks so far, this one is the most different. The colour is very nice but it smudges likes crazy. There is no way this thing dries fast. Even using a blotter, this ink is a problem for me. Also this makes my nib write like a fine instead of a medium. Pen does not feel as smooth as with other Noodler's inks. It was terrible for writing in greeting cards. It smudges even on quality papers. Beware.

Its defining characteristic is its shading, which it is unparalleled in regards to. Amazing, subtly vibrant and a beautiful light blue to add an extra dimension of brilliance. Also, the packaging in everything I've ever ordered here is impeccable and I'd like to express my eternal gratitude. Much appreciated GPC, keep it up.

Gorgeous color that picks up right away with a wet brush. Some lines fully lift when wet, so heads-up!

I am really enjoying this ink. I am using it in a fine nib and seeing shading. I really enjoy the blue turquiose color and the way it is smooth and wet.

Turquoise was my late mother's favorite color and using this ink reminds me so much of her!

Very satisfying.

I started with a Noodler's ink sample set because I was curious about, and interested in, a different ink. When I saw Navajo Turquoise in the vial and then inked up a pen, I was hooked. It's such a rich and expressive blue. A real joy to write with. I have many other inks to try, but I don't want to switch!

Ewerything fine just right!

I love this ink! Gorgeous color, flows nicely, doesn't bleed through on the papers I've tried so far & always starts up writing when I first pick it up

I love the color, I wish it was a little faster drying but it isn't a complete deal breaker. It shows really clear and bright on notebook paper ( I personally use it in my Leuchtterm notebook for bullet journaling). For the price it really is a good ink and I would purchase it myself again.

This ink is just a wonderful ink to use. Vibrant turquoise, excellent flow properties, dries reasonably quickly. Not the most waterproof in my experience, but still reasonably good.

This is a great, rich, pure blue, practically #0000C0 in hex. But it never dries in a useful amount of time on anything but thirsty copy paper. Rhodia coated paper, Japanese notebooks/notepads like Kokuyo or Maruman, and even my Leuchtturm Master Slim leave wet ink on the surface for several MINUTES - don't bother with the 30 / 20 / 10 / 5 second tests. Even rocking a blotter across my Maruman pad did little to stop the smudging. I truly think anyone who reviewed this as "Fast" drying must have clicked to the far right under "Dry Time" thinking instinctively that it mean "More" because jeez, no way is this fast.

Superb saturation and shading. Wet ink. Just perfect!

bought it to mix my own ink colors, but it's great on its own as well!

I love the color of this ink--it is my dream shade, the color of Kingman turquoise. The dry time is pretty fast, although I do smudge on occasion if I'm careless. It flows well in my Pilot Metropolitan pens. I have not tried it in any of my other pens yet. To me it is great value for the money.

This is no doubt a beautiful color. However, I won't be using it again and I am sorry I purchased it. Those who are saying the dry time of this ink is FAST are not being honest, IMNSHO. I wrote out a shopping list on a piece of cheap paper. After more than an hour in Costco, I was still transferring ink to my fingers and things I picked up. No amount of blowing or blotting got it to dry any faster. I'd hate to see the dry time on this on a fountain pen friendly paper!

This is one of my very favorite inks. It just feels like sunshine and happiness to me when I see it on the page or on my hands, and I smile whenever I'm using it. I'm no fountain pen or ink expert, so I included a picture below, the paper is Leuchtturm and please forgive the handwriting, it was a quick scribble for personal use before I thought to share it. The sample doesn't show the true brightness of the turquoise, but it does give you a decent idea of the shading. In my Ahab flex which flows very wet, you won't see very much of the lighter blues unless you work at it. A stub will show a lot of shading. A fine nib like a Pilot Metro fine will show off the lightest aspect of the turquoise but even there you will still get recognizable shading which I find remarkable in a Metro fine. I will also add that this ink is fairly easy to clean from my pens compared to something like Liberty's Elysium. As far as hands go, soap will get some of it off but not all of it. I don't have much experience to evaluate water resistance or dry time so I marked those both as medium. If I had to guess on dry time I'd say medium high unless you're using something like an Ahab, in which case you'll have to wait a while. When journaling with a Metro fine I haven't noticed much problem with dry time.