Ester 8:2

8:2 The king then removed his signet ring (the very one he had taken back from Haman) and gave it to Mordecai. And Esther designated Mordecai to be in charge of Haman’s estate.

Ester 8:8

8:8 Now you write in the king’s name whatever in your opinion is appropriate concerning the Jews and seal it with the king’s signet ring. Any decree that is written in the king’s name and sealed with the king’s signet ring cannot be rescinded.

Kejadian 41:42

41:42 Then Pharaoh took his signet ring from his own hand and put it on Joseph’s. He clothed him with fine linen ¹  clothes and put a gold chain around his neck.

[41:42]  ¹ tn The Hebrew word שֵׁשׁ (shesh) is an Egyptian loanword that describes the fine linen robes that Egyptian royalty wore. The clothing signified Joseph’s rank.