The Diamine Fountain Pen Ink – Onyx Black offers a deep, intense black that delivers a professional and timeless look to every page. Its smooth and consistent flow ensures clean, sharp lines without feathering or smudging, making it perfect for office work, journaling, and creative writing. With its rich pigmentation and reliable performance, Onyx Black is a staple ink for any fountain pen enthusiast.
Features
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Deep, intense Onyx Black color for a classic look
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Smooth and consistent ink flow for effortless writing
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Water-based, high-quality formulation
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Minimal feathering and quick-drying performance
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Compatible with all standard fountain pens
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Ideal for professional writing, journaling, and creative use
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Works seamlessly with converters and refillable pens
