What does 2 Samuel 12:30 mean?

He took the crown from the Ammonite king's head—it weighed about seventy-five pounds and was set with a precious stone—and put it on his own head. He also took a huge amount of loot from the city. 2 Samuel 12:30 - Modern Text Bible

(David claims the enemy king's crown and riches, showing his dominance and the scale of the victory.)