Exodus 39:8-14

He made the breastpiece, in skilled work, in the style of the ephod, of gold, blue and purple and scarlet yarns, and fine twined linen. It was square. They made the breastpiece doubled, a span its length and a span its breadth when doubled. And they set in it four rows of stones. A row of sardius, topaz, and carbuncle was the first row; and the second row, an emerald, a sapphire, and a diamond; and the third row, a jacinth, an agate, and an amethyst; and the fourth row, a beryl, an onyx, and a jasper. They were enclosed in settings of gold filigree. There were twelve stones with their names according to the names of the sons of Israel. They were like signets, each engraved with its name, for the twelve tribes.