Ink Review #1229: Diamine Sapphire Blue

Diamine Sapphire Blue is a pretty, classic blue I’ve had for quite a while. I purchased my bottle of ink from Cult Pens a few years ago.

The color:

Sapphire Blue is a gorgeous, classy medium blue.

Swabs:

In large swabs on Tomoe River paper you can see some of the pretty sheen.

Writing samples:

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

Dry time: 10 seconds

Water resistance: Low

Feathering: Low-there is just a little bit of feathering in the flex nib on Rhodia and Leuchtturm.

Show through: Medium

Bleeding: None

Other properties: low shading, low brown sheen, and no shimmer.

On Staples 24 lb copy paper there was some feathering in most nib sizes as well as some bleeding.

Comparison Swabs:

Sapphire Blue seems like a darker version of Diamine China Blue. Click here to see the Diamine inks together, and click here to see the blue inks together.

Longer writing:

I used a TWSBI Eco Transparent Blue with a medium nib on a Taroko Enigma notebook. The ink had an average flow.

Overall, it’s a beautiful, well behaved ink that dries quickly. It’s worth a try, especially at the affordable price.

Disclaimer: I purchased this ink myself, and all photos and opinions are my own. This page does not contain affiliate links and this post is not sponsored in any way.