This master piece was launched on February of 2006 to mark the centenary celebration of Van Cleef & Arpels and Mont blanc. they are the proud makers of this fantastic piece named the Mystery Masterpiece. It was made of white gold, adorned with rubies, emeralds or sapphires and accented by diamonds. Each pen has 840 diamonds and more than 20 carats of gemstones set in a Van Cleef & Arpels patented ‘Mystery Setting’. This incredible thing is priced at $730,000.