Police in Commerce City, Colorado said the metal necklace stopped a bullet from piercing the man's neck after a shooting broke out during an argument with another man.
Miraculously, the almost half-inch wide metal chain stopped the .22 caliber bullet from taking the man's life, only leaving behind a minor puncture wound.
"We'd say he really dodged a bullet - but in reality, he LODGED a bullet," the police department wrote in a Facebook post May 29.
The suspect was arrested at the scene and faces attempted homicide charges.
The necklace has a silvery appearance but police say it's likely not pure silver because that is a softer metal that might not have stopped the bullet.