Exodus 28:6-12 - And they shall make the ephod of gold, of blue, and of purple, of scarlet, and fine twined linen, with cunning work.It shall have the two shoulderpieces thereof joined at the two edges thereof; and so it shall be joined together.And the curious girdle of the ephod, which is upon it, shall be of the same, according to the work thereof; even of gold, of blue, and purple, and scarlet, and fine twined linen.And thou shalt take two onyx stones, and grave on them the names of the children of Israel:Six of their names on one stone, and the other six names of the rest on the other stone, according to their birth.With the work of an engraver in stone, like the engravings of a signet, shalt thou engrave the two stones with the names of the children of Israel: thou shalt make them to be set in ouches of gold.And thou shalt put the two stones upon the shoulders of the ephod for stones of memorial unto the children of Israel: and Aaron shall bear their names before the LORD upon his two shoulders for a memorial. (Verses like Exodus 28:6)
Exodus 25:7 - Onyx stones, and stones to be set in the ephod, and in the breastplate. (Verses like Exodus 25:7)
Leviticus 8:7 - And he put upon him the coat, and girded him with the girdle, and clothed him with the robe, and put the ephod upon him, and he girded him with the curious girdle of the ephod, and bound it unto him therewith. (Verses like Leviticus 8:7)