NET

26 Above the platform over their heads was something like a sapphire shaped like a throne. High above on the throne was a form that appeared to be a man.

Darby

26 And above the expanse that was over their heads was the likeness of a throne, as the appearance of a sapphire stone; and upon the likeness of the throne was a likeness as the appearance of a man above upon it.

KJV

26 And above the firmament that [was] over their heads [was] the likeness of a throne, as the appearance of a sapphire stone: and upon the likeness of the throne [was] the likeness as the appearance of a man above upon it.