The carpet, which was donated to the Washington-based Corcoran Gallery of Art by senator from Montana William Clark in 1925, is decorated with swirling vines and flowers.
According to the Sotheby's auction house, 3-meter long, 2-meter wide carpet was sold to an anonymous phone bidder for $33,765,000.
Iranian mass media have presented the carpet as a Persian carpet. Sotheby's auction house says the carpet dated back to the 17th century. At that time Azerbaijan Safavid state ruled in the present territory of Iran and under the order of Shah Abbas I carpet and weaving workshops were created in all provinces of the state, especially in Shirvan, Karabakh, Gilan, Keshan, Kirman, Tabriz, Ardabil, Astrabad, Mashhad, Isfahan.