Natural Testing Stone with Wooden Box (6" x 3" x 3/8")

Our Natural Testing Stone is designed to help determine the karat value of silver, gold, and platinum. The large surface—6" x 3" x 3/8"—provides ample testing area for quick, repeatable results, making it a trusted tool for jewelers, pawn shops, and hobbyists. Built for accuracy and ease of use, this durable stone ships with a protective wooden box for safe storage between tests.

• Large testing surface: 6" x 3" x 3/8" for fast, repeatable results.
• Multi-metal testing: accurately assess karat value in silver, gold, and platinum.
• Includes wooden box: keeps the stone protected and portable.
• Durable and precise: designed for regular use with reliable performance.
• Easy to clean and maintain: simple care for long-lasting accuracy.

Enhance your jewelry lab or at-home toolkit with this essential testing stone. Add to your toolkit today to start achieving precise, repeatable results in silver testing, gold testing, and platinum testing.