on saleDiamine Celadon Cat - 30ml Bottled Ink

Product Code D3111

In Stock

out of stock

on saleDiamine Celadon Cat - 30ml Bottled Ink

Product Code D3111

In Stock

out of stock


MSRP $8.00

30ml plastic bottle of Diamine Celadon Cat, a blue/green/grey fountain pen ink.

This color was chosen by members of the /r/fountainpens reddit subcommunity.

Bottled Ink
Bottle Material
Bottle Opening Diameter
11.9mm (0.47in)
Fast Drying

Whether or not the ink contains glittery particles.

Freeze Resistant

Whether or not an ink is specially formulated to better withstand freezing temperatures.

Iron Gall

Ink made from iron salts and tannic acids. Though quite permanent and waterproof, these inks are typically known for causing chemical corrosion to metal pen parts (especially the nib) and should be used sparingly or with less-valuable pens.


Whether or not an ink is specially formulated to increase flow in your pen.


Whether or not the ink contains finely-ground solid particles in liquid suspension.

Water Resistant

Whether or not the ink, once dried on the paper, will resist being washed away with water.


Customer Reviews

Based on 9 reviews
A very dry ink

I find the color of this ink fascinating � in fact, I voted on it in the reddit bracket. BUT this ink is so dry that it is unusable. I tried it in multiple pens, finally putting it in a pen with an ebonite feed and a broad nib (properly heat-set), and it still could not flow consistently. I'm really highly disappointed. A good reminder of buying ink samples before full bottles....

Tammy C.

my daughter is a fountain pen fanatic. She loves the Diamine Celadon Cat ink I got her. I may even get a bottle for myself!

Simon W.
Diamine Celadon Cat

Wonderful ink! It's a light ink on the page, but that works just fine for me. The color is gorgeous, and true to what is shown. Medium-ish shading on Rhodia paper. Overall, it will become a new standard in my collection, though perhaps not for everyday use.

Caleb C.

The ink is a bit light, but it is a very nice color.

Ben H.
Perfect color

I love light and dull toned colors. This ink is rich and has slight pooling witch makes it feel unique. There is a hint of yellow/gold when it dries properly. My only nitpick is how the colors can feel wet and slightly unpredictable at times. I am sure this is just my pen/ink combination(pilot falcon), but otherwise no complaints.

FAQs about Bottled Ink

Which pens can accept this ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Any of these fountain pens will work with bottled ink. Typically, as long as the pen can be filled with a converter, has a built-in filling mechanism like a piston, or can be eyedropper-filled, it can accept bottled ink.

What is shading, sheening, or shimmering ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Shading - A common (and often desired) result of a fountain pen ink pooling in certain parts of a letter when writing, so that the color and saturation of the ink appears different within a single letter or word. This characteristic cannot be achieved with ballpoint or rollerball pens and is a very appealing aspect of fountain pen use for those particularly drawn to all the pretty ink colors.

Sheen - Characteristic of a fountain pen ink where when ink pools another color can be seen on top of the ink, especially when looked at in different light angles using certain paper types. There is no way to guarantee an ink will sheen, but using a larger nib on a pen will help obtain sheening results in your writing.

Shimmering - Fountain pen ink that has small particles of glitter mixed in.

Is shimmering ink safe to use in fountain pens? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Yes! Shimmering ink is a great way to add some flare to your writing. We have found that a larger nib will showcase more shimmering particles while writing, but you can use any nib size and shimmering ink. All the ink we sell is safe for use in fountain pens.

You can learn more in our blog: How to Write with Shimmering Ink.

My ink smells funny, is it safe to use? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Generally yes! Ink does not smell good- it usually has a chemical smell, along with other scents such as sulfur, rubber, chemicals or even paint. However, as long as you’re not seeing anything floating in the ink, it should be safe to use.

It’s cold and my ink froze; is it safe to use? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Yes, frozen ink will not hurt your pen (after it’s thawed of course!) The issue with ink freezing is primarily a concern because certain glass bottles could break as the water-based ink expands, and then you’d have a mess!

What is your return policy for bottled ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

We do not accept returns for ink that has been used. Otherwise, we accept returns on unused ink products for up to 30 days from purchase. You can read all our Return Policies here.

To initiate a return, please submit a request at the Return Portal. Our Customer Care team might reach out to you for more information.