Exodus 28:9-12,20
And you shall take two onyx stones, and grave on them the names of the children of Israel:
Nave's Topical Index—AKJV

Exodus 39:6,13
And they worked onyx stones enclosed in ouches of gold, graven, as signets are graven, with the names of the children of Israel.
Nave's Topical Index—AKJV