The Daria-e Noor (Sea of Light) Diamond from the collection of the national jewels of Iran at Central Bank of Islamic Republic of Iran (Tehran).
|Weight||182 carats (36.4 g)|
|Cut||Tabular, free-form. Inscribed.|
|Country of origin||India|
|Mine of origin||Kollur Mine, Andhra Pradesh|
|Cut by||Shekhar Bhimanadham|
|Owner||Central Bank of Iran, Tehran, Iran|
The Daria-i-Noor (Persian: دریای نور which means “Sea of light” in Persian; (also spelled Darya-ye Noor) is one of the largest cut diamonds in the world, weighing an estimated 182 carats (36 g). Its colour, pale pink, is one of the rarest to be found in diamonds. The Daria-i-Noor is in the Iranian Crown Jewels of Central Bank of Iran in Tehran.
This diamond, like the Koh-i-Noor, was mined at the Paritala-Kollur Mine in Andhra Pradesh, India. It was originally owned by the Kakatiya dynasty, later it was looted by Turkic Khilji dynasty and to Mughal emperors.
In 1739, Nader Shah of Iran invaded Northern India, occupied Delhi. As payment for returning the crown of India to the Mughal emperor, Muhammad, he took possession of the entire fabled treasury of the Mughals, including the Daria-i-noor, in addition to the Koh-i-noor and the Peacock throne.
After Nader Shah's death, the diamond was inherited by his grandson, Sharukh Mirza. From there, it fell into the hands of the Lotf Ali Khan. After Lotf Ali Khan's defeat at the hands of Mohammad Khan Qajar, who established the ruling Qajar dynasty of Iran, the Daria-i-Noor entered the Qajar treasury. During this time, Naser al-Din Shah Qajar was said to be very fond of the diamond, often wearing it as an armband, aigrette, or a broach and maintenance of the diamond was an honor bestowed upon higher ranking individuals. The diamond currently resides the National Jewels of Iran. 
In 1965, a Canadian team conducting research on the Iranian Crown Jewels concluded that the Daria-i-Noor may well have been part of a large pink diamond that had been studded in the throne of the Mughal emperor Shah Jahan, and had been described in the journal of the French jeweller Jean-Baptiste Tavernier in 1642, who called it the Great Table diamond ("Diamanta Grande Table"). This diamond may have been cut into two pieces; the larger part is the Daria-i-Noor; the smaller part is believed to be the 60-carat (12 g) Noor-ul-Ain diamond, presently studded in a tiara also in the Iranian Imperial collection.
- "Collections". cbi.ir. Retrieved 1 March 2014.
- Deccan Heritage, H. K. Gupta, A. Parasher and D. Balasubramanian, Indian National Science Academy, 2000, p. 144, Orient Blackswan, ISBN 81-7371-285-9