Ink Review #2685: Diamine Cosmic Glow

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It’s Day 21 of the Diamine Inkvent 2024 Calendar! We have almost finished the calendar. You can still find the Inkvent Calendar for sale at Cult Pens, along with many others. Thanks to Diamine for sending the Inkvent Calendar over for review!

The color:

Cosmic Glow is a deep blue with a ton of pinkish-red sheen.

*For my swab cards I use a Col-o-ring by Skylab Letterpress, a medium Pilot Ishime and a Mabie Todd Swan.

Swabs:

In large swabs on Tomoe River paper you can see a lot of the sheen. This ink is advertised as extreme sheen.

Writing samples:

Let's take a look at how the ink behaves on fountain pen friendly papers: Rhodia, Tomoe River, and Leuchtturm.

*For my writing samples I use:

Dry time: 50 seconds

Water resistance: Low

Feathering: None

Show through: Medium

Bleeding: Low

Other properties: no shading, monster pink sheen, and no shimmer.

On 20 lb copy paper the ink had feathering in all nib sizes and some bleeding.

Comparison Swabs:

Cosmic Glow is similar to a lot of other inks including Vinta Tubbatha. Click here to see the blue inks together.

Longer Writing:

I used a Montegrappa Elmo Blue with a medium nib on a Taroko Enigma notebook. The ink has an average flow.

Overall, I’m kinda over these extreme sheeners. There’s just so many of them out there now, especially the blue with pink sheen combo. It is well behaved though, and I didn’t have any issues with smearing.

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Disclaimer: This product was provided by Diamine for the purpose of this review. All photos and opinions are my own. This page does not contain affiliate links and this post is not sponsored.