10 Best Diamond Testers 2024 in the US

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Assisted Thermal Calibration: Enables easy self-calibration to adapt to the testing environment, ensuring accurate results.

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Industry Trust: Redesigned for enhanced compactness, durability, and portability, making it a reliable choice for professionals.

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Ultra-Thin Probe Tip: Features the thinnest retractable probe tip for precise testing of gemstones.

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Versatile Gemstone Identification: Provides consistent and reliable results, capable of identifying diamonds, moissanites, and other common colored gemstones.

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User-Friendly Operation: Designed with a clear and easy-to-read analog dial, simplifying the process of differentiating up to 16 types of gemstones.

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Fast and Safe Testing: Quickly and accurately distinguishes genuine diamonds from fakes with safety in mind.

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Intuitive LCD and LED Indicators: Features an easy-to-read LCD display and LED indicator with audible sounds for clear and convenient reading results.

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Ease of Use: Designed for straightforward operation, allowing both novices and experts to use the tool without the need for professional training.

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Versatile Testing Capabilities: Includes switches to test different sized diamonds, enhancing the tool's versatility.

5.

Complete Kit: Comes with all necessary accessories including a leather pouch, testing platform, user manual, and a 9V battery to start testing immediately.

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Dual Power Supply: USB Type-C and 9V battery options for flexibility.

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High Accuracy: Indicates genuine diamonds without causing harm.

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Imitation Detection: No sound or red light for imitation stones.

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60X Magnification: Includes LED magnification for detailed inspection.

5.

Easy to Use: User-friendly design with an attached manual.

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Low Power Usage: Ensures efficient operation, conserving energy and reducing costs.

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Low Battery Indicator: Provides timely alerts to ensure the device is always ready for use.

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Instant Recovery Time: Allows for continuous testing without delay between tests.

4.

Thermal Conductivity Testing: Accurately identifies diamonds and differentiates them from simulants.

5.

Metal Detector Alert: Warns the user to prevent accidental contact with gem mountings during testing.

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Professional Diamond Selector: Quick, precise, and safe diamond testing.

2.

Intuitive Design: LCD display and LED indicator for easy reading.

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For Imitation Detection: No sound or red light for imitation stones.

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Metal Alert Buzzer: High-frequency beep for metal detection.

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Bright LED Light: Dual LED for visibility in low light conditions.

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Low Power Usage: Efficient energy consumption ensuring the device is operational when needed.

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Low Battery Indicator: Alerts the user to replace or charge batteries to maintain continuous operation.

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Instant Recovery Time: Quick reset between tests for efficient and continuous usage.

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Thermal Conductivity Testing: Accurate detection of diamonds and simulants based on their heat dissipation properties.

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Metal Alert: Notifies the user if the device accidentally contacts the gem mounting to prevent false readings.

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Real vs Fake Detection: Audible sound to distinguish real diamonds from fakes.

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Fluorescent Reaction Test: Equipped with light to test stone fluorescence.

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Flexible Calibration: Multi-level volume for different stone sizes.

4.

User-Friendly Design: Easy to use with clear sound and light indicators.

5.

Safe for Diamonds: Designed to be harmless to diamonds during testing.

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Quick Precise Testing: Distinguishes real diamonds quickly and safely.

2.

Convenient PU Bag: Includes a PU bag and tray for loose stones.

3.

Compact Design: Ideal for jewelry buying, auctions, and more.

4.

LED and Audio Display: LED light and sound indicate test results.

5.

Easy Calibration: Calibrates easily for stones of different sizes.

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Rapid diamond testing: Ideal for testing diamonds in rapid succession.

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2-year warranty: Comes with a 2-year warranty for peace of mind.

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9V battery powered: Runs off a 9 volt battery, included; low battery indicator.

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Metal alert: Alerts if metal is touched during testing.

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Quick warm-up: Warms-up in 7 seconds; 150 second shut-off to save battery.