Talar Almas (Hall of Diamonds) is located in the southern wing of Golestan Palace next to the Badgir Building.  It is called Hall of Diamonds because of the exceptional mirror work inside the building.

The construction of this hall dates to the time of Fath Ali Shah (circa1806). Nasser-ol-Din Shah renovated this hall changing its appearance and replacing the hall’s Ogival arches with Roman ones.  He also ordered the walls covered with wallpaper imported from Europe.  As the basic structure dates back to the time of Fath Ali Shah, it is only. It is only apt that this hall should be devoted to the exhibition of art and handicrafts from that period.