Cosmic tiara

The Cosmic Tiara is a type of Tiara that allows the wearer to access the Cosmic Altar.

The Cosmic Tiara is crafted by combining a talisman with a tiara. To combine them simply use the tiara on the altar with the talisman in your inventory.

Though there is no requirement to wear it, it requires the Lost City and 27 Runecrafting to make.