Our natural testing stones are a great value. Use with solutions and test needles to determine the karat value of articles to be tested. Great quality and economical! Dimensions: 2-1/2" x 1-1/2" x 1/4".

Find this tool at: http://www.jewelrytools.com/eurotool/jewelry-testing-supplies/Natural-River-Danube-Gold-Testing-Stone-Small.html

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