on saleDiamine Bilberry - Ink Sample

Product Code IS-D7088

In Stock

out of stock

on saleDiamine Bilberry - Ink Sample

Product Code IS-D7088

In Stock

out of stock


2ml sample of Diamine Bilberry fountain pen ink, in a labeled plastic vial.

Ink Samples
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 27 reviews
Olivia W.
Lovely purple that isn't too bold or too mild

I thought the Bilberry did a great job providing the consistency most Diamine inks seem to bring to the table. It works well in a variety of pens and for art or writing.

Nico B.
Rich purple with gold sheen

A very rich purple and a beautiful gold sheen with a wet pen. Very nice ink and one of my favorite purples. This ink will smear on Tomoe River even the next day.

Nice Ink But Stained Pen

Came in a random sampler pack. I liked the color and flow. However, I left this ink in a monteverde monza over the weekend and when I cleaned the pen it had permanently stained part of the feed. Tried cleaning it with water and then isopropyl alcohol to no success. So be warned.

Bryan l.
Beautiful color

A good alternative to baystate Concord grape. Not as vibrant but doesn't feather the way I've seen baystate does. I really like This color.

Flow issues

First, let me say that all my pens are Japanese, and all the nibs are EF. This is important because it means that with such a thin line, flow and saturation are more important to me, and drying time and shading less so. Second, Diamine Oxblood is my favorite ink, so I'm partial to Diamine. Lastly, of all the purply-blues I've used, I like the Bilberry color the best. Professional enough, yet stands out. So I really wanted to like this ink. But I've tried it in several of my pens, and in each one there's a significant delay in flow if I stop writing for a few seconds. Far too viscous - it really becomes unusable. I don't have this problem with other inks, including the Oxblood. Maybe I got a bad bottle, but I would suggest that any EF fans out there considering this ink should buy a sample from Goulet before committing to it.

FAQ about Ink Samples

How do I fill my fountain pen from an ink sample vial? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

It depends on the fountain pen's filling mechanism.

Check out our blog post on How to Fill a Fountain Pen from an Ink Sample Vial.

How much writing can I do with 2ml of ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

It really depends on how big or small you write, and the nib size you’re using. We find that usually you can get 2 good fills for a typical converter with our Ink samples, or one good fill with a piston-filling pen. How much writing depends on you more than anything else, so we recommend experimenting with different nib sizes to find what works best for you. 

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.

What's your return policy for ink samples? 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.