Jewelry: Iran possesses an extraordinary treasury of royal jewelry. This includes a copious amount of mother-of-pearls from the Persian Gulf. The Iranian crown jewels are among the largest, most dazzling and valuable jewel collections in the world. The jewels are displayed in the vaults of the Central Bank of Iran in Tehran, and are one of the most appealing tourist attractions in Iran. Akik is also exported from Iran to various countries including the Indian subcontinent.