Exodus 28:18-22

and the second row a turquoise, a sapphire, and a diamond;

and the third row a jacinth, an agate, and an amethyst;

and the fourth row a beryl, and an onyx, and a jasper; they shall be set in gold filigree.

The stones shall be engraved according to the names of the sons of Israel: twelve, according to their names; they shall be like the engravings of a signet, each according to his name for the twelve tribes.

You shall also make on the breastpiece twisted chains of cord work in pure gold.