The meaning of Sapphire in the Bible
(From Easton's Bible Dictionary)

Associated with diamonds (Exodus 28:18) and emeralds (Ezekiel 28:13); one of the stones in the high priest's breastplate. It is a precious stone of a sky-blue colour, probably the lapis lazuli, brought from Babylon. The throne of God is described as of the colour of a sapphire (Exodus 24:10; Compare Ezekiel 1:26).

See more on the meaning of Sapphire in the Bible:
Sapphire {International Standard Bible Encyclopedia}

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