Below is a brief summary of gold and silver purity marks commonly found on jewelry produced in the United States today. These markings have been regulated since the passing of the 1906 National Gold & Silver Marking Act. For more details about plating and overlay marks, click here.
It’s important to note that not all gold and silver is marked. Both old and new pieces exist with no identifying marks. For more information , read our layman’s summary on the history of gold marking in the US.