Exodus 24:10
And they saw the God of Israel: and there was under his feet as it were a paved work of a sapphire stone, and as it were the body of heaven in his clearness.
Torrey's Topical Textbook—AKJV

Ezekiel 1:26
And above the firmament that was over their heads was the likeness of a throne, as the appearance of a sapphire stone: and on the likeness of the throne was the likeness as the appearance of a man above on it.
Torrey's Topical Textbook—AKJV