Exodus 39:14-16

Young's Literal Translation

¹⁴ And the stones, according to the names of the sons of Israel, are twelve, according to their names, openings of a signet, each according to his name, for the twelve tribes.

¹⁵ And they make on the breastplate wreathed chains, work of thick bands, of pure gold;

¹⁶ and they make two embroidered things of gold, and two rings of gold, and put the two rings on the two ends of the breastplate,