Feature: 1. The 14k testing platinum stone is particularly resistant to acidity, and the gold color is particularly easy to rub on the stone 2. Do the acid drop test on the 18k black testing stone, the real gold will stay on it, the fake gold will dissolve or oxidize into blue 3. 22k gold platinum silver test is great for testing gold, silver, platinum and other metals 4. Use this gold detection stone, the acid will change color according to the purity, the touch stone is easy to use and will not cause your gold and silver quality loss 5. Gold silver appraisal kit is fun, fast, and accurate! determines the gold & silver jewelry in seconds Specification: Material: Stone Weight: 55~65g Optional types: normal, advanced (small) packing list: 1 * Gold Silver Jewelry Tester (without acid test water)

Measuring Purity: This gold test stone for coins is used to test any pure gold you think is 10k, 14k, 18k, 22k, 24k, and jewelry testing stones can measure a variety of purities. Suitable for Goldsmithing: Gold testing detection stone is very suitable for testing jewelry, coins, silver, platinum collectibles, a must-have jewelry scratch acid test tool for pawnshops, gold and silver stores, gold and silver testing stones can also help you buy gold and silver for your family, girlfriend , in order to prevent your wife from being cheated, as a woman, you can also buy it to test whether your boyfriend or husband is cheating you with fake gold and silver jewelry. Non Slip Design: The portable gold test stone has a non slip pad on the back to prevent the stone from sliding or scratching on the table top, the platinum acid test stone is used to test your gold jewelry without damaging it, use the jewelry gold testing stone instead of testing directly in one piece. Discoloration Test Method: Put a drop of silver platinum testing tools water on the acid silver test stones, the real gold will stay on the touchstone, the fake gold will dissolve or oxidize into blue, the acid will change the color according to the purity, using this precious metal test stone, you will not need to test your precious metal direct operation to avoid damage to the quality of your precious metals. Testing Stone Detect Precious Metals: This genuine testing stone is used to verify the gold content of an item, the smooth black glass surface allows you to easily read the test acid on this stone, this detect metals scrap testing stone is used with the gold test acid to determine if acid gold test stones is pure gold and carat.

Batteries required: No. Assembly required: No. Best Sellers Rank: #355,282 in Arts, Crafts & Sewing. Country of Origin: China. : B09XV967G9. Manufacturer: Joyzan. Item Weight: 0.915 ounces. Product Dimensions: 3.07 x 1.77 x 0.31 inches.