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Diamine have been making ink since 1864 and are one of the last remaining manufacturers in the UK. In 1925 the company created a state-of-the-art production facility in Liverpool, and despite several changes of ownership, they have remained in the same area ever since. Throughout, the Diamine trade mark and the traditional production methods have survived and now in the 21st century their fountain pen ink remains the first choice of many pen connoisseurs. Click here to read more

Featured Diamine



Diamine ink is a water-based ink perfect for any brand of fountain pen. It is completely non-toxic and offers probably the widest range of quality fountain pen ink colours in the world - in both traditional and contemporary shades.

By adding a secret ingredient to de-stress the surface, Diamine achieves vibrant colour with free flow that glides on the paper surface, and which will not clog your pen.

When we decided it was time for a deep, dark blue ink, to match our logo, Diamine created it for us. The success of that shade meant it became the start of the Deep Dark range - each one created by Diamine, working with us. Along with this huge range of fountain pen ink, Diamine also make much-loved calligraphy inks, and the classic iron gall Registrar's Ink used by registrars and the clergy for official documents all over the UK.