If you see the initials “JM” on jewelry, it is likely a personal hallmark or signature used by a silversmith named James Mason. 

In the world of jewelry, especially handmade or artisan jewelry, it is common for the artist or silversmith to mark their work with their initials or a hallmark to indicate the maker of the piece. This can be done for both identification and authenticity purposes.

James Mason, who is a well-known Native American Navajo silversmith, uses the initials “JM” as his personal hallmark to identify his jewelry creations. 

This hallmark serves as a unique identifier for his work and signifies that the piece was made by James Mason. It may be stamped or engraved onto the jewelry piece itself, often on the back or underside, as a way to authenticate his craftsmanship and artistic expression.

What Is It Worth?

The value of jewelry marked with “JM” or any other hallmark would depend on various factors, including the specific piece, materials used, craftsmanship, design, condition, and demand in the market. 

As a personal hallmark or signature, the value of jewelry marked with “JM” would be influenced by the reputation, skill, and recognition of James Mason as a silversmith.

Navajo jewelry, known for its intricate silverwork, often commands a premium in the market due to its cultural significance, craftsmanship, and artistry.

Is It Of Good Quality?

The quality of jewelry marked with “JM” would depend on factors such as the materials used, and craftsmanship. It’s important to evaluate each piece individually and consider factors such as the design, durability, and finish to determine its quality.


If you are considering purchasing jewelry marked with “JM” or any other hallmark, it’s recommended to buy from a reputable source, such as a trusted jeweler or a recognized dealer specializing in Native American jewelry. 

This can help ensure that you are getting a high-quality piece that meets your expectations in terms of craftsmanship and materials used.

Write A Comment