Exodus 39:8-21

And he made the breastplate, artistically woven like the workmanship of the ephod, of gold, blue, purple, and scarlet thread, and of fine woven linen. They made the breastplate square by doubling it; a span was its length and a span its width when doubled. And they set in it four rows of stones: a row with a sardius, a topaz, and an emerald was the first row; the second row, a turquoise, a sapphire, and a diamond; the third row, a jacinth, an agate, and an amethyst; the fourth row, a beryl, an onyx, and a jasper. They were enclosed in settings of gold in their mountings. There were twelve stones according to the names of the sons of Israel: according to their names, engraved like a signet, each one with its own name according to the twelve tribes. And they made chains for the breastplate at the ends, like braided cords of pure gold. They also made two settings of gold and two gold rings, and put the two rings on the two ends of the breastplate. And they put the two braided chains of gold in the two rings on the ends of the breastplate. The two ends of the two braided chains they fastened in the two settings, and put them on the shoulder straps of the ephod in the front. And they made two rings of gold and put them on the two ends of the breastplate, on the edge of it, which was on the inward side of the ephod. They made two other gold rings and put them on the two shoulder straps, underneath the ephod toward its front, right at the seam above the intricately woven band of the ephod. And they bound the breastplate by means of its rings to the rings of the ephod with a blue cord, so that it would be above the intricately woven band of the ephod, and that the breastplate would not come loose from the ephod, as the LORD had commanded Moses.