Diamine have been manufacturing high quality fountain pen ink since 1864 in Liverpool, England.
Diamine's ink has long enjoyed a reputation for superior quality due to the fine quality non-clogging pigments used and Diamine's unique lubricant ingredient ensuring even and smooth application of their inks.
These ink cartridges displayed here are available in single-colour boxes of 18 standard "international size" cartridges which fit many different brands of pen.
If you're looking for a variety of inks, please see Diamine's assorted packs, which contain a selection boxes of 5 complementary colours - 20 cartridges in a box, 4 of each colour.