Description Diamine Blue Edition Triple Chocolate fountain pen ink is a rich medium shade of brown, without the calories. The very unique 50ml glass bottle has concave sides and stands on 4 legs. This color was released as part of the 2019 Inkvent Calendar, and is now part of the regular Blue Edition lineup. Diamine fountain pen ink is considered to be well behaved and smooth flowing, and has been made in the UK for over 150 years. 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.