Darya-e Noor or “Sea of Light” diamond, a crown jewel of Iran.
In 1738, Nader Shah invaded India. His military prowess and numerous successes on the battlefield forced the Mughal king, Mohammad Shah, to beg for his mercy. Nader Shah withdrew, but not without depleting the Mughal treasury of its most precious jewels, including Darya-e Noor. The loot and booty seized from India was so rich that Nader Shah held off on taxation for three years after his return to Iran. 
One of the largest diamonds in the world, Darya-e Noor is currently on view at the Central Bank of Tehran. Let’s go.
(via)

Darya-e Noor or “Sea of Light” diamond, a crown jewel of Iran.

In 1738, Nader Shah invaded India. His military prowess and numerous successes on the battlefield forced the Mughal king, Mohammad Shah, to beg for his mercy. Nader Shah withdrew, but not without depleting the Mughal treasury of its most precious jewels, including Darya-e Noor. The loot and booty seized from India was so rich that Nader Shah held off on taxation for three years after his return to Iran. 

One of the largest diamonds in the world, Darya-e Noor is currently on view at the Central Bank of Tehran. Let’s go.

(via)