Data as of Sep 20, 2026 · Based on 3,326,640 AI responses across 10,525 prompts · See how Parse measures this
3 of 4 measured questions
affordablehuge color selectionexcellentreliablebest valuewell-behavedexcellent performanceenormous color selection
Diaminediamineinks.co.ukDiamine Inks is a UK-based, family-run business selling fountain pen inks and related supplies, including bottled inks (80ml and 30ml), shimmer inks, Forever Ink, cartridges, cleaning supplies, calligraphy inks, and gift sets/refills. They offer bespoke ink services through the Diamine Ink Studio and carry themed products such as the Inkvent calendars (including the 2025 Teal Edition) and anniversary inks. They serve both consumers and retailers, with gift cards and free UK shipping on orders over £10.
The market map · 5 of 35 labelled
Fountain Pens and Ink →
Pilot Penco-mentionedWhere Diamine ranks in AI
Excerpts where Diamine appeared in the AI's answer
Diamine — Best value and variety; an enormous color selection and generally very affordable.
Diamine is widely considered the best overall brand for its combination of affordability, massive color selection, and exceptionally safe, smooth flow.
