Diamine brand ink has a long and rich history, dating back to 1864. Diamine ink is produced in the UK and is made with a gentle formula safe for all fountain pens. It has quickly become one of the most popular and sought-after brands around. A wide selection of ink colors is available.
Great off-black color. It's similar to Payne's Gray watercolors which is why I
like to use it. The ink is not waterproof and I use it for light ink washes when
drawing and it makes a beautiful blueish tone.