Diamond 580 Fountain Pen | Iris

The Diamond 580 Iris is a deluxe edition of TWSBI’s flagship pen, featuring an iridescent rainbow finish on its metal accents, so no two pens are exactly alike. Combining the best of modern design with the best of the traditional fountain pen, it’s a high-quality, stand-out pen you’ll love to write with every day. Comfortable and well-balanced, it has a smooth-writing nib that makes writing effortless. Its transparent body is faceted like a diamond to catch the light and show off the ink inside. The Diamond 580 Iris has a built-in piston filling mechanism that’s easy to use, and the pen can be disassembled for cleaning.

• Piston filling mechanism
• Stainless steel nib with a rainbow finish, available in multiple sizes
• Uses bottled ink only (not included)
• Comes in a box with wrench and silicone grease for maintenance
• 5.6″ when closed
• 5.1″ when open

TWSBI made a name for themselves with their high-quality, affordable demonstrator pens, which let you see the inner workings of your pen. The built-in filling mechanisms they use are usually only found in much more expensive fountain pens. TWSBI encourages writers to get to know the mechanics of their pens by disassembling and maintaining them at home.