Exodus 39:6

39:6 They set the onyx stones in gold filigree settings, engraved as with the engravings of a seal with the names of the sons of Israel.

Exodus 39:14

39:14 The stones were for the names of the sons of Israel, twelve, corresponding to the number of their names. Each name corresponding to one of the twelve tribes was like the engravings of a seal.

Exodus 39:30

39:30 They made a plate, the holy diadem, of pure gold and wrote on it an inscription, as on the engravings of a seal, “Holiness to the Lord.”