Diamine x Niche Pens Alexandrite Fountain Pen Ink
Diamine x Niche Pens Alexandrite is an exclusive collaboration ink created to mark Pure Pens' 15th anniversary — named after alexandrite, the gemstone associated with 15th anniversaries and celebrated for its remarkable colour-changing properties.
Just like the gemstone, this ink shifts character depending on the light. In daylight it presents as a deep teal blue; as the light changes it transitions toward a rich, warm red. Add to that a stunning red sheen that catches the light on the page, and you have an ink that rewards close attention every time you write with it.
Available in:
- 30ml plastic bottle — standard edition
- 80ml glass bottle — standard edition
- 30ml plastic bottle — silver shimmer edition
Ink properties:
- Base colour: Dark blue-teal with colour shift
- Sheen: Red
- Water-based, acid-free and non-toxic
- Suitable for all fountain pens, modern and vintage
Diamine has been producing ink in England since 1864, using traditional methods that ensure consistently high quality. Alexandrite is one of their most distinctive collaboration inks — a true collector's bottle.
Browse the full Diamine ink range or explore all fountain pen inks at Pure Pens.
UK Delivery Information
Free Royal Mail 48 (2-4 day) shipping on orders over £50.
Upgraded to 24 (1-2 day) or Special Next Working Day Delivery based on order value too. Learn More
Non-UK Orders
EU Orders will now have VAT applied at checkout, so there are NO fees due before delivery.
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Other countries will be tax free at checkout, but duties may be charged by your local customs office before delivery - We cannot control this as each country has their own rules for different products.
