Expensive and exclusive items are generally available in limited editions, and so to commemorate the 100th anniversary of two renowned brands, Mont Blanc and Van Cleef & Arpels, in 2006, in a joint venture, they launched 9 of the most valuable pens in the world which are named Mystery Masterpieces. This exclusive writing instrument is a fantastic creation of both the makers and the artisans took more than one and half years to complete its creation. This pen is available in three different varieties. White gold is the main element used in this pen and it is adorned with precious stones; either with sapphires, rubies or emeralds with diamonds on each of the pens. The entire pen is studded with 840 diamonds. Each exclusive masterpiece contains an ample number of precious stones which sum up to 20 carats. The price of these intricate pens with extravagant designs is set at $730,000 for one pen.