As I live, saith the LORD, though Coniah the son of Jehoiakim king of Judah were the signet upon my right hand, yet would I pluck thee thence; Though Coniah - Called Jeconiah, probably on ascending the throne. See on Jeremiah 22:10 (note).
The signet upon my right hand - The most precious seal, ring, or armlet. Though dearer to me than the most splendid gem to its possessor.