Manufactured in Liverpool England since 1864. Diamine fountain pen inks are suitable for all brands of pen.

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Diamine Blue Velvet is a vibrant, medium blue fountain pen ink that is good for everyday writing.Diamine Velvet Blue fountain pen ink is available in a triangular shaped 40ml bottle.
Diamine 150th Blue Velvet
From $ 3.85 USD
16 reviews
Diamine Regency Blue is a dark blue fountain pen ink with a violet undertone and high pink sheen.Diamine Regency Blue fountain pen ink is available in a triangular shaped 40ml bottle.
Diamine 150th Regency Blue
From $ 3.85 USD
4 reviews
Diamine Tudor Blue is a dark blue fountain pen ink with medium shading.Diamine Tudor Blue fountain pen ink is available in a triangular shaped 40ml bottle.
Diamine 150th Tudor Blue
From $ 3.85 USD
1 review
Diamine Aqua Blue is a summery light blue fountain pen ink with low shading and a pop of pink sheen in large swabs.Diamine Aqua Blue
Diamine Aqua Blue
From $ 8.00 USD
No reviews
Diamine Aqua Lagoon is a vibrant turquoise fountain pen ink with medium shading and a pop of pink sheen in large swabs. Diamine Aqua Lagoon
Diamine Aqua Lagoon
From $ 8.00 USD
No reviews
Diamine Asa Blue is a saturated dark blue fountain pen ink.Diamine Asa Blue
Diamine Asa Blue
From $ 8.00 USD
3 reviews
Diamine Aurora Borealis is a medium teal fountain pen ink that was designed by Reddit’s r/fountainpens group.Diamine Aurora Borealis
Diamine Aurora Borealis
From $ 3.35 USD
9 reviews
Diamine Beau Blue is a pale baby blue fountain pen ink with medium shading. This ink is very pale, so it performs best in large nib sizes. Diamine Beau Blue
Diamine Beau Blue
From $ 8.00 USD
2 reviews
Diamine Blue Edition Festive Cheer is a medium blue fountain pen ink that features high copper sheen.Diamine Blue Edition Festive Cheer Sheen
Diamine Blue Edition Festive Cheer Sheen
From $ 3.65 USD
3 reviews
Diamine Blue Edition Happy Holidays is deep velvety blue fountain pen ink that also features copper sheen and aqua blue-green shimmer.Diamine Blue Edition Happy Holidays Shimmer & Sheen
Diamine Blue Edition Happy Holidays Shimmer & Sheen
From $ 4.15 USD
6 reviews
Diamine Blue Edition Jack Frost is a saturated blue fountain pen ink that also features bright red sheen and frosty blue shimmer.Diamine Blue Edition inks are available in 50ml glass bottle that features a whimsical shape.
Diamine Blue Edition Jack Frost Shimmer & Sheen
From $ 4.15 USD
6 reviews
Diamine Blue Edition Polar Glow is a deep cool turquoise fountain pen ink featuring a warm red sheen.Diamine Blue Edition inks are available in 50ml glass bottle that features a whimsical shape.
Diamine Blue Edition Polar Glow Sheen
From $ 3.65 USD
7 reviews
Diamine Celadon Cat Reddit Ink ProjectDiamine Celadon Cat Reddit Ink Project
Diamine Celadon Cat Reddit Ink Project
From $ 3.35 USD
3 reviews
Diamine China Blue is a medium blue fountain pen ink. The color is inspired from the classic blue imagery often seen on fine China or porcelain.Diamine China Blue
Diamine China Blue
From $ 3.35 USD
2 reviews
Diamine Eau de Nil is a dark teal fountain pen ink with medium shading and low black sheen.Diamine Eau de Nil
Diamine Eau de Nil
From $ 3.35 USD
5 reviews
Diamine Florida Blue is a cool summer blue fountain pen ink with low shading.Diamine Florida Blue
Diamine Florida Blue
From $ 8.00 USD
5 reviews