What does 14KJS mean inside a white gold diamond ring?

The marking "14KJS" inside a white gold diamond ring indicates that the ring is made of 14-karat gold, which is a common standard for gold jewelry containing 58.3% pure gold and the remainder being other metals for durability. The "JS" likely represents the initials of the jeweler or manufacturer who created the ring. This combination ensures that the piece meets quality standards for both the gold content and craftsmanship.