Diamine x Niche Pens Alexandrite Fountain Pen Ink


2019 marks our 15th anniversary of selling pens, inks and stationery accessories on our two websites. We wanted to mark what’s a special time for us with something that will be really, really special for you!

We've named the ink 'Alexandrite' - a 15th anniversary gemstone, with unique colour-changing properties depending on the time of day. A deep teal in daytime light, to a rich red when the light starts to fade at dusk. Our ink, too, changes colour and sheens with changing light perspectives.

Established in England in 1864, Diamine is one of the world's premier ink manufacturers. Since its inception, the company has continued to use the most traditional methods to ensure one of the highest of quality inks on the market. Given the quality of the ink, it is suitable for use in all brands of pen, both modern and vintage.

Notable individuals to have used Diamine ink include presidents Obama and Medvedev when signing 2010's nuclear arms treaty. With dozens of colours in its range, Diamine inks are water-based, acid-free and non-toxic.

The 30ml (1.06oz) bottles are a high-quality plastic and perfectly lightweight for the smaller volume.

The 80ml (2.8oz) bottles have a lovely historic design, with a high quality feel.

Brexit Changes & Considerations

International Shipping Information

Since the UK left the EU in January 2021, the way international shipments are dealt with by Customs has changed. Please take the time to read about it so you know what to expect with cross-border deliveries