Exodus 39:2-6

He made the ephod of gold and of violet, purple, and scarlet material, and fine twisted linen.

Then they hammered out gold sheets and cut them into threads to be woven in with the violet, the purple, and the scarlet material, and the fine linen, the work of a skilled embroiderer.

They made attaching shoulder pieces for the ephod; it was attached at its two upper ends.

And the skillfully woven band of its overlay which was on it was like its workmanship, of the same material: of gold and of violet, purple, and scarlet material, and fine twisted linen, just as the Lord had commanded Moses.

They also made the onyx stones, set in gold filigree settings; they were engraved like the engravings of a signet, according to the names of the sons of Israel.