KOH-I-NOOR is a diamond called the Mountain of Light and one of the oldest and largest diamonds in the world. The Czech state-run pencil and stationery factory, taking its name KOH-I-NOOR, emphasizes the quality and history of its pencils as a diamond in the pencil world. KOH-I-NOOR has been in business for more than two hundred years, providing student supplies, office supplies, art supplies and various visual arts supplies to more than 60 countries around the world.