A little about Diamine:
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. Drying time and ink flow are excellent and it comes in an attractive bottle. Wide selection of different ink colors available
"One of the richest, deepest blues available with just a hint of a red sheen. Also, it smells... clean." - Dillon Hoang, I.S.