Kiani Crown

The Kiani Crown (Persian: تاج کیانی) was the traditional coronation crown in the Iranian Crown Jewels which was used during the Qajar dynasty (1796–1925). 
The crown itself is made of red velvet, on which thousands of gems were set. The Kiani Crown is highly decorated, possessing 1800 small pearls, many only 7 millimetres in diameter, stitched onto it. It has approximately 300 emeralds and 1,800 rubies. The crown is 32 cm (12.5 in.) high and 19.5 cm (7.5 in.) wide. It is currently kept in the National Treasury of Iran in Tehran.
Reza Shah, the founder of the Pahlavi dynasty, had his own Pahlavi Crown designed, but the Kiani Crown was present during his coronation in 1926. 
Middle and New Persian "kay(an)" originates from Avestan "kavi" (or "kauui") "king" and also "poet-sacrificer" or "poet-priest".