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AllinOne ReadytoUse Kit Comes with tester pen, leather storage pouch, stable testing platform, user manual and 9V batteryno extra purchase, usable right out of the box.Intuitive Gem Identification Equipped with highprecision sensor, the tester displays different light numbers and beeps for various gems, easily distinguishing real diamondsmoissanite from glass, CZ, jade and crystal.HassleFree Simple Operation Just 4 basic stepsload battery, preheat 30s, calibrate to the 4th mark, touch the metal panel and test with perpendicular probe recalibrate for each new gem test.Clear Usage Scope Specialized for nonmetal gemstones like diamond, jade, agate and crystal NOT for metal, gold, plastic or skin metal leads to false beep due to thermal conductivity.Reliable Testing Tips Support Test in windfree environment for accuracy, power off after use to save battery free stepbystep video guide and professional customer service for any troubleshooting. MORE DETAILS asin B0GJBCTKLQ batteries 1 9V batteries required. included bestsellersrank 32,513 in Arts, Crafts Sewing See Top 100 in Arts, Crafts Sewing 8 in Jewelry Diamond Testers customerreviews 3.9 3.9 out of 5 stars 48 3.9 out of 5 stars datefirstavailable March 17, 2026 itemmodelnumber RRD itemweight 5 ounces manufacturer Dyfizer productdimensions 5.31 x 0.87 x 1.57 inches
