The Iranian National Jewels (Persian: جواهرات ملی ایران, Javāherāt-e Melli-ye Irān), originally the Iranian Crown Jewels (Persian: جواهرات سلطنتی ایران, Javāherāt-e Saltanati-ye Irān), include elaborate crowns, thirty tiaras, and numerous aigrettes, a dozen bejeweled swords and shields, a number of unset precious gems, numerous plates and other dining services cast in precious metals and encrusted with gems, and several other more unusual items (such as a large golden globe with the oceans made of emeralds) collected or worn by the Iranian monarchs from the 16th century (Safavid Iran) and on.
After taking and raiding the cities of Kandahar and Kabul as well as several principalities in far-off northern India, and sacking Delhi, the victorious Nader Shah returned to Iran with what remained of the plundered crown jewels as well as several other precious objects now found in the Iranian Treasury.
Four of the most prominent acquisitions from this conquest were the Koh-i-Noor and Darya-ye Noor diamonds (both originating from India and still amongst the largest in the world), the Peacock Throne, and the Samarian Spinel.
The splendor of the collection came to the attention of the western world largely through their use by Mohammad Reza Shah and his Shahbanu, Farah Pahlavi, during official ceremonies and state visits.
[citation needed] Because of their great value and economic significance, the Iranian crown jewels were for centuries kept far from public view in the vaults of the Imperial treasury.