Diamine30 ml Bottle Fountain Pen Ink, Oxford Blue

I had heard so much about this color. It was mentioned to be a favorite by one of my most watched YouTuber. When i inked it up I was blown away. It was exactly the dark blue I had been searching for. Dark but not mistakeable for a black ink. The richness of the blue tone is I would say for me, one of the most eye catching in a blue ink that I had ever used. This is my new favorite blue ink.

Great blue -black ink for letter writing. Not a water resistant ink so will not be the best for an envelope but color excellent for the body of writing and note taking. I will buy this ink again.

I love Diamine ink and got this for my brother to start him out in fountain pen life.It's a nice office color, not waterproof. So keep that in mind. I like the subtle shading of purple/red.It's a good fun or anytime ink. If you like blue inks it's worth a try.

It's much darker blue than the swab in the picture. I'm pretty sure it's my pen. It's a platinum preppy with a 0.3 nib and writes very wet. I really love it. I can tell that it's solid blue, but not a washed out pale blue. Fantastic! Just what I wanted.

It's an amazing ink that works so well in my Lamy Safari. I'm almost finished and I love the red sheen on it, There is a lot of shading and not so water resistant. But it is amazing to write with,

Fantastic ink! It's my "serious professional" blue. I usually don't use it for legal documents, which I reserve the Baystate Blue for, but for either memos or company internal documents, it's my go-to ink!

A professional looking blue-black that flows well even in rather dry and/or extra-fine nibs. As others have said, it's quite a bit darker than it looks like in some pictures.

The bottle is nice, and the ink is good.