The Diwani script is a script which exudes sovereignty. It was developed during the reign of the early Ottoman Turks during the 16th to the early 17th century.
It was the formal calligraphy style of the Ottoman court, written in gold paint and used for the most significant documents such as the diplomatic decrees (Ferman) and legal documents (Berat). It was present in the Ottoman diplomatic correspondence until the 20th century.
Diwani is the most decorative script and difficult to read, especially when it comes to its more festive manifestation called Jali Diwani. Masters of Diwani include Sami Efendi, an Ottoman Turk calligraphy extraordinare of the 19th century.
Diwani's beauty lies within its complexity and harmony between the letters; thus it is no wonder that it holds a high artistic value till this very day.