Exodus 39:7

5The skillfully woven band that was on it, with which to fasten it on, was of the same piece, like its work: of gold, of blue, purple, scarlet, and fine twined linen, as the LORD commanded Moses.

6They worked the onyx stones, enclosed in settings of gold, engraved with the engravings of a signet, according to the names of the children of Israel.

7He put them on the shoulder straps of the ephod, to be stones of memorial for the children of Israel, as the LORD commanded Moses.

8He made the breastplate, the work of a skillful workman, like the work of the ephod: of gold, of blue, purple, scarlet, and fine twined linen.

9It was square. They made the breastplate double. Its length was a span, and its width a span, being double.