Discover the Diplomat by Octopus Ink and express your personality and mood. Choose between the 15 beautiful colours available to create beautiful writing with your chosen colour. Diplomat has proudly collaborated with a German based company, based in Saxony where Diplomat manufactures their famous pens. It is fair to say that this is a perfect collaboration, resulting in a wide panel of beautiful inks housed in elegant bottles and designed to work beautifully with Diplomat Fountain Pens. Choose your Diplomat colour.