Exodus 39:2-7

²And he made the ephod of gold, blue, and purple, and scarlet, and fine twined linen. ³And they did beat the gold into thin plates, and cut it into wires, to work it in the blue, and in the purple, and in the scarlet, and in the fine linen, the work of the skilful workman. ⁴They made shoulder-pieces for it, joined together; at the two ends was it joined together. ⁵And the skilfully woven band, that was upon it, wherewith to gird it on, was of the same piece [and] like the work thereof; of gold, of blue, and purple, and scarlet, and fine twined linen; as Jehovah commanded Moses.

⁶And they wrought the onyx stones, inclosed in settings of gold, graven with the engravings of a signet, according to the names of the children of Israel. ⁷And he put them on the shoulder-pieces of the ephod, to be stones of memorial for the children of Israel; as Jehovah commanded Moses.