The Darya-ye Noor (Persian: دریای نور which means “Sea of Light”, or “Ocean of Light” in Persian; also spelled Darya-i-Noor, Darya-e Noor and Darya-i-Nur) is one of the largest 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 Darya-ye Noor presently forms part of the Iranian Crown Jewels and is on display at the in Tehran.
This diamond, like the Koh-i-Noor, was mined at the Golconda mines, more specifically Paritala-Kollur Mine in Andhra Pradesh, India. It was owned by the Mughal emperors.
In 1739, Nader Shah of Iran invaded Northern India, occupied Delhi and then massacred many of its inhabitants. 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 Darya-i-noor, in addition to the Koh-i-noor and the Peacock throne. All of these treasures were carried to Iran by Nader Shah and the Darya-i-noor has remained there ever since. (x)