Who looted Delhi in 1739 and took way the peacock throne and the diamond?

Nader Shah of the Persian Afsharids attacked the Mughals under Muhammad Shah, in the Battle of Karnal in 1739 which resulted in the sacking of Delhi. To get the Afsharids to withdraw, Muhammad Shah agreed to give Nader Shah the peacock throne and the diamonds (Koh-i-Noor and Darya-ye Noor) in exchange for a withdrawal from Delhi. Nader Shah agreed and withdrew.