'Signet' in the Bible

And he said, What pledge shall I give thee? And she said, Thy signet, and thy lace, and thy staff which is in thy hand. And he gave it her, and went in to her; and she conceived by him.

When she was brought forth, she sent to her father-in-law, saying, By the man to whom these belong am I with child; and she said, Acknowledge, I pray thee, whose are this signet, and this lace, and this staff.

As I live, saith Jehovah, though Coniah the son of Jehoiakim, the king of Judah, were a signet upon my right hand, yet will I pluck thee thence;

And a stone was brought, and laid upon the mouth of the den; and the king sealed it with his own signet, and with the signet of his nobles, that the purpose might not be changed concerning Daniel.

In that day, saith Jehovah of hosts, will I take thee, Zerubbabel son of Shealtiel, my servant, saith Jehovah, and will make thee as a signet; for I have chosen thee, saith Jehovah of hosts.