Bible Verses About Precious Stones: Art of engraving upon, early known to the Jews

`And thou hast taken the two shoham stones, and hast opened on them the names of the sons of Israel;

the work of an engraver in stone, openings of a signet, thou dost open the two stones by the names of the sons of Israel; turned round, embroidered with gold, thou dost make them.

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