Diorama is a municipality in eastern Goiás state, Brazil. Diorama is 254 kilometres west of the state capital, Goiânia, and 30 kilometres west …Diorama is a municipality in eastern Goiás state, Brazil. Diorama is 254 kilometres west of the state capital, Goiânia, and 30 kilometres west of the regional center, Iporá. Neighboring municipalities are Montes Claros de Goiás, Arenópolis, Iporá and Israelândia.