Exodus 39:10-14

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. 10They set in it four rows of stones. A row of ruby, topaz, and beryl was the first row; 11and the second row, a turquoise, a sapphire, and an emerald; 12and the third row, a jacinth, an agate, and an amethyst; 13and the fourth row, a chrysolite, an onyx, and a jasper. They were enclosed in gold settings. 14The stones were according to the names of the children of Israel, twelve, according to their names; like the engravings of a signet, everyone according to his name, for the twelve tribes. 15They made on the breastplate chains like cords, of braided work of pure gold. 16They made two settings of gold, and two gold rings, and put the two rings on the two ends of the breastplate. 17They put the two braided chains of gold in the two rings at the ends of the breastplate. 18The other two ends of the two braided chains they put on the two settings, and put them on the shoulder straps of the ephod, in its front. 19They made two rings of gold, and put them on the two ends of the breastplate, on its edge, which was toward the side of the ephod inward. 20They made two more rings of gold, and put them on the two shoulder straps of the ephod underneath, in its front, close by its coupling, above the skillfully woven band of the ephod. 21They bound the breastplate by its rings to the rings of the ephod with a lace of blue, that it might be on the skillfully woven band of the ephod, and that the breastplate might not come loose from the ephod, as Yahweh commanded Moses.