2 Samuel 12:29-33

So David gathered all the people and went to Rabbah, and he fought against it and captured it.

Then he took the crown of their king from his head; and its weight was a talent of gold, and it had a precious stone; and it was placed on David’s head. And he brought out the plunder of the city in great amounts.

He also brought out the people who were in it, and put some to work at saws, iron picks, and iron axes, and made others serve at the brick works. And he did the same to all the cities of the sons of Ammon. Then David and all the people returned to Jerusalem.