The Treasury of National Jewels is a museum in Tehran, Iran, that houses one of the largest and most valuable collections of jewels in the world. The collection includes a wide range of items such as crowns, thrones, swords, and other ornaments, many of which were used by the Persian monarchs from the Safavid dynasty up until the Pahlavi dynasty.

Some of the most notable pieces in the collection include the Darya-ye Noor, one of the largest pink diamonds in the world, the Peacock Throne, a throne made of gold and encrusted with jewels, and the Kiani Crown, a crown made of gold and precious stones.

The museum was established in 1960 and is located in the Central Bank of Iran building in Tehran. The collection is so valuable that it is considered a national asset and is not allowed to leave the country. The museum is open to visitors and provides an opportunity to see some of the most beautiful and historically significant jewels in the world.