Diamine inks have been the go-to choice for many fountain pen manufacturers. They offer a wide range of vibrant colors, presented in beautiful 80ml glass bottles. These inks are water-soluble, fairly wet with easy flow, have a standard drying time, and are completely safe to use in all fountain pens. Diamine Inks – Made in England since 1864. With over 160 years of tradition, Diamine is one of the oldest and most respected ink manufacturers in the world. Their heritage combines craftsmanship with innovation, offering everything from classic shades to shimmering and sheen-rich specialty inks. Whether you're a calligrapher, a journaler, or a pen enthusiast, Diamine provides a trusted, high-quality experience.