Exodus 28:9-21

9And thou shalt take two onyx stones, and grave on them the names of the children of Israel: 10six of their names on the one stone, and the names of the six that remain on the other stone, according to their birth. 11With the work of an engraver in stone, like the engravings of a signet, shalt thou engrave the two stones, according to the names of the children of Israel: thou shalt make them to be inclosed in settings of gold. 12And thou shalt put the two stones upon the shoulder-pieces of the ephod, to be stones of memorial for the children of Israel: and Aaron shall bear their names before Jehovah upon his two shoulders for a memorial. 13And thou shalt make settings of gold, 14and two chains of pure gold; like cords shalt thou make them, of wreathen work: and thou shalt put the wreathen chains on the settings.

15And thou shalt make a breastplate of judgment, the work of the skilful workman; like the work of the ephod thou shalt make it; of gold, of blue, and purple, and scarlet, and fine twined linen, shalt thou make it. 16Foursquare it shall be and double; a span shall be the length thereof, and a span the breadth thereof. 17And thou shalt set in it settings of stones, four rows of stones: a row of sardius, topaz, and carbuncle shall be the first row; 18and the second row an emerald, a sapphire, and a diamond; 19and the third row a jacinth, an agate, and an amethyst; 20and the fourth row a beryl, and an onyx, and a jasper: they shall be inclosed in gold in their settings. 21And the stones shall be according to the names of the children of Israel, twelve, according to their names; like the engravings of a signet, every one according to his name, they shall be for the twelve tribes.