The main part of the Amaravati Stupa was a solid great dome which most likely stood about 18 metres high. The dome was made of pale green limestone which was probably painted with bright colours.
The upper part of the dome was probably decorated with plaster garlands. Garlands made of real vines and flowers were used to decorate buildings for festivals and special occasions.
Although none of these garlands have survived at Amaravati, people believe that they existed because they can be seen in stone reliefs showing stupas. Fragments of plaster garlands have also been found at other stupa sites in the region.