alexandrite

Diamine Alexandrite is a dark blue-teal fountain pen ink with unique color-shifting properties, appearing as a daylight teal that transitions to a rich sunset red sheen under different lighting, inspired by the anniversary gemstone. Known for its exquisite writing experience and moderate sheening, it offers Diamine's signature quality in a limited edition collaboration with Niche Pens. It suits enthusiasts seeking a versatile, eye-catching ink for daily writing and creative pursuits.