The Emerald Belt
This belt is woven of gold and can be seen in photographs of Nasseridin Shah Qajar from the second half of the 19th century. The belt band is 119 cm. (46 in.) and was therefore probably made for Nasseridin Shah, or his father, Mohammad Shah. It could not have been built for Fathali Shah, who was known to have a narrow waist.
The oval-shaped emerald on the beltbuckle is surrounded by diamonds, and has been estimated to be 5 cm. (2 in.) tall and weigh 175 cts. It may have been previously used as part of another decoration. Not much is known of the history of the gem, but for one reference from the court of Jahangir, the Mughul Emperor of India, dated 1616. It could have been brought to Iran following Nader Shah's conquest of Delhi.
The same belt band was used on the occasion of Reza Shah Pahlavi's coronation, but a different band was used on the occasion of the coronation of his son, Mohammad Reza Shah Pahlavi, the last Shah.