Inspired by the Greeks, ancient Roman artists decorated these homes with refined ceramic work that combined the same rigor and imagination displayed by the 800 Montblanc craftsmen whose talent has turned this pen into a genuine work of art. Christened the Monte Celio and topped with a diamond weighing almost 12 carats, its body adorned with 1500 diamonds and pink sapphires, this pen is a true masterpiece, both technically and, of course, aesthetically. This virtuosity is reflected in the price: 2.4 million euros.