The Aurora Diamante Fountain Pen Who would have ever thought of a diamond garlanded fountain luxury pen. The Aurora Diamante fountain pen is the most expensive writing instrument till date. Only one is for sale per year. The Aurora Diamante contains over 30 carats of De Beers’s diamonds on a solid platinum barrel. It has a two-tone, rhodium-treated, 18KT solid gold nib and is personalized with a coat of arms, signature or portrait. Aurora Pens says it is the only over 30 carat pen in the world. Price: $1,470,600
