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Diamine

Diamine fountain pen ink

★★★★½ 4.6/5 (2 editorial & verified reviews)
Estimated price $5.45 – $10.63
Overall Score4.6/5.0
Editor's Verdict

Diamine fountain pen ink offers excellent value with an impressive color range and dependable performance. It is a top choice for fountain pen users seeking vibrant, smooth-flowing ink that balances quality and affordability. While not waterproof, its ease of cleaning and quick drying times make it ideal for everyday writing and creative projects.

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  • Available in over 80 vibrant and classic colors
  • Water-based, non-permanent formula with moderate water resistance
  • Smooth ink flow compatible with most fountain pens
  • Fast drying time for reduced smudging
  • Archival quality with excellent color retention
  • Convenient 80ml glass bottles with stable wide base
  • Formulated to minimize clogging and pen damage
Performance breakdown
Editor scores · 5-point scale
Daily writing feel
4.8/5
Build & materials
5.0/5
Comfort
4.3/5
Value for money
5.0/5
Long-term durability
5.0/5
At-a-glance profile
Five-axis radar
BUILDPERFORMANCECOMFORTVALUEDESIGN
✓ What we liked
  • Extensive color selection for all writing styles
  • Affordable price point for premium quality
  • Good shading and saturation levels
  • Easy to clean from pens and nibs
  • Bottles designed to reduce spills during refilling
  • Reliable ink flow without skipping
  • Suitable for daily use and artistic applications
✗ Worth noting
  • Not fully waterproof, may smudge if exposed to water
  • Some colors can take longer to dry on certain papers
  • Glass bottles are fragile and require careful handling
✅ Check current price on AliExpress

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Full Review

Diamine fountain pen ink has long been celebrated among writing enthusiasts for its wide color range and reliable performance. Crafted in the UK, Diamine inks are water-based and formulated to deliver smooth, consistent flow in a variety of fountain pens without clogging. The brand offers a vast palette that includes vibrant, pastel, and classic tones, catering to both everyday writing and artistic calligraphy needs.

The inks are known for their excellent shading properties and fast drying times relative to other fountain pen inks, making them practical for left-handed users and quick note-taking. Additionally, Diamine inks are well-regarded for their archival quality, maintaining color integrity over time with minimal fading. The bottles are designed with a wide base for stability and a user-friendly opening to facilitate easy refilling.

While Diamine inks are generally non-waterproof, their formula balances permanence with easy cleanability, which helps prevent damage to pens and allows straightforward maintenance. This makes Diamine a versatile choice whether you are a student, professional, or hobbyist looking for dependable, high-quality ink that enhances your writing experience.

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What buyers say

Emily R. March 2025
★★★★★
Beautiful colors and smooth flow
I've been using Diamine inks for over a year and love the variety of shades available. The ink flows smoothly in my pens without any skipping or clogging, and the colors really pop on paper. Highly recommend for anyone who enjoys fountain pens.