'Signet' in the Bible

Then Pharaoh removed his signet ring from his finger and put it on the finger of Joseph. And he clothed him with garments of fine linen, and he put a chain of gold around his neck.

And they came, the men in addition to the women, all [who were] willing of heart; they brought brooches and jewelry rings and signet rings and ornaments--every [variety] of gold object--every man who waved a wave offering of gold for Yahweh,

So the king removed his signet ring from his hand and gave it to Haman son of Hammedatha the Agagite, the enemy of the Jews.

And the king removed his signet ring that he had taken away from Haman, and he gave it to Mordecai. So Esther set Mordecai over the house of Haman.

Write {as you see fit} concerning the Jews in the name of the king, and seal [it] with the king's signet ring; for a decree that is written in the name of the king and sealed with the king's signet ring cannot be revoked."

And he wrote in the name of King Ahasuerus, and he sealed [the letters] with the king's signet ring and sent them by couriers on horses, riding on royal horses {bred by} racing mares.

the signet rings and the nose rings,

And a stone was brought and it was put on the entrance of the pit, and the king sealed it with his signet [ring] and with the signet [rings] of his lords, so that nothing would be changed concerning Daniel.

'On that day,' {declares} Yahweh of hosts, 'I will take you, Zerubbabel son of Shealtiel, my servant,' {declares} Yahweh, 'and I will make you a signet ring, for I have chosen you,' {declares} Yahweh of hosts."