New for 2017, the Gemstone bottled ink collection from Monteverde captures the vibrancy and colour that we expect from a precious gem or jewel. Available in 10 vivid colours this ink showcases the world's latest leading European ink treatment formula (ITF) which ensures your pen will write to its best capability. This unique ITF helps to drastically improve ink-flow quality, extend cap-off time, and lubricate and protect the ink feeding systems from corrosion and clogging.