Perrier-Jouët Anniversary Edition pen by Omas  £99,341

Prince Rainier III Limited Edition 81 Pen — £188,800

Limited Edition Boheme Papillion Pen by Montblanc — £169,927

Caran d’Ache Gothica Pen — £299,756

Mystery Masterpiece by Montblanc and Van Cleef and Arpels — £538,375

La Modernista Diamond Pen — £195,437

Heaven Gold Pen by Anita Tan — £734,188

Diamante by Aurora — £944,000