Exodus 28:14

11 With the work of an engraver in stone, like the engravings of a signet, shall you engrave the two stones, according to the names of the children of Israel: you shall make them to be enclosed in settings of gold.

12 You shall put the two stones on the shoulder-pieces of the ephod, to be stones of memorial for the children of Israel: and Aaron shall bear their names before Yahweh on his two shoulders for a memorial.

13 You shall make settings of gold,

14 and two chains of pure gold; you make them like cords shall, of braided work: and you shall put the braided chains on the settings.

15 "You shall make a breastplate of judgment, the work of the skillful workman; like the work of the ephod you shall make it; of gold, of blue, and purple, and scarlet, and fine twined linen, shall you make it.

16 It shall be square and folded double; a span shall be its length of it, and a span its breadth.

17 You shall set in it settings of stones, four rows of stones: a row of ruby, topaz, and beryl shall be the first row;