The 5 best luxury fountain pens to buy, from Montblanc and Harry Winston to Lalique and Montegrappa – but would you drop US$114,000 on Cartier’s diamond-encrusted Crocodile Décor?

• Montegrappa’s Zero Zodiac model is inspired by Capricorn, Lalique’s pen is set in 340 diamonds, and Harry Winston’s Falconry Legacy is a tribute to birds of prey
• Though Montblanc’s 1924 Meisterstück may set you back US$2,780, make room for Cartier’s Crocodile Décor, at US$114,000, covered in 18k yellow gold, of course