Description Diamine Golden Brown fountain pen ink is a soft shade of brown and comes in an 80ml glass bottle that has a square base and a narrow neck. Diamine fountain pen ink is considered to be well behaved and smooth flowing, and has been made in the UK for over 150 years. Love this color? Check out our thINKthursday blog post for more details! Having trouble deciding between colors? Use our Ink Comparison Tool to quickly and easily view different colors side by side. We offer Free Shipping on all orders over $59 for US customers, and for orders over $250 for our Canadian customers.