A joint creation of Montblanc and Van Cleef & Arpels, this is one of the most expensive pens ever created. It costs $730,000. Each pen has 840 diamonds and more than 20 carats of gemstones set in a Van Cleef & Arpels patented “Mystery Setting” that conceals the stone settings.
Next to various Limited Editions like the Patron of the Art Series with only a few hundred of them being produced around the world, there are some Limited Editions produced from editions of 4810 to those in tens of thousands.
The Patron of the Art (POA) Series are found in editions of 888. These models are intricately adorned in diamonds, rubies, and other precious stones into precious metals typically in 18K gold. A signature mark on these include a Mother of Pearl Montblanc Star adorning the cap.
Although cheaper, the Montblanc Writers Edition has been profitable. These pens are launched each year, commemorating the life and work of a particular writer, with their signature engraved into the cap of the edition. Usually, a symbol of their most distinguished work is engraved onto the nibs, of the fountain pen versions. Montblanc use "aged resin" in the caps of the pens in this series, to give the Montblanc star an 'off-white' or 'cream coloured' appearance, thereby ensuring a contrast in colour when next to models from their regular production line-up.
Apart from a serial number the Limited Edition pieces carry a distinct number placing it within the release of the edition, i.e. 1/888 would be the first pen produced of an edition of 888 pens. In 2009 the Signature for Good limited edition was released. Montblanc donates parts of its proceeds to UNICEF. They claim to guarantee a minimum of US $1.5 million worldwide within one year.