GMT Combo Diamond Tester Professional, Moissanite Tester High Accuracy Diamond Test

Description

• Multi-stone identification: Distinguishes between diamonds, moissanite, and other gemstones.
• Metal detection: Includes a built-in metal detector to prevent false readings by alerting if the probe touches the jewelry’s metal setting.
• Dual-technology testing: Combines different technologies, like thermal conductivity, to provide more accurate results than basic diamond testers.
• Visual and audible alerts: Uses color-coded lights and beeps to indicate the test results and when the device is ready to use.
• User-friendly design: Features a retractable, durable probe and is designed to be portable and easy to use for both beginners and professionals.
• Power and efficiency: Typically battery-powered with automatic shutoff functions to conserve energy and may have a fast warm-up time. 

1. Preparation: The device is turned on and allowed to warm up. A built-in metal detector can help confirm the probe is ready and not in contact with any metal parts.
2. Stone testing: The user touches the retractable probe to the gemstone they want to test.
3. Reading the results: The tester analyzes the stone’s thermal and/or electrical properties and provides an immediate result, typically with a visual display and an audible alert.
   • Diamond: Often indicated by a specific color, such as blue.
   • Moissanite: Indicated by a different color, like green.
   • Other stones/metal: Other results may be indicated by a different color or a separate alert for metal. 

• Accuracy: While GMT combo testers are accurate, some advanced or low-conductivity moissanites may be difficult to identify.
• Proper usage: Incorrect use or false readings can occur, so always follow the manufacturer’s instructions for best results.
• Professional consultation: For complete certainty, especially for valuable items, it is best to get a professional opinion from a gemologist.