30ml glass bottle of Monteverde Sapphire blue fountain pen ink. This color is part of the Monteverde Gemstone collection.

Monteverde ink is lubricated to help prevent it from drying out in your pen.

Monteverde USA is proud to have created the world’s latest leading European ink treatment formula (ITF). Enjoy peak performance with ITF which drastically improves ink-flow quality, extends cap-off time, and lubricates and protects the ink feeding systems from corrosion and clogging. Monteverde inks are available in a variety of vibrant colors.

Ink Color: Sapphire