Diamond Selector Hardness Tester – Thermal Conductivity Gemstone Tester

£27.54 Inc VAT

& Free Delivery

Accurately identify diamonds and gemstones with this professional-grade thermal conductivity tester.

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Professional Diamond and Gemstone Testing

This high-quality thermal conductivity tester is designed for accurate identification of diamonds and gemstones.

Key Features

  • Tests diamond authenticity using thermal conductivity
  • Assesses gemstone hardness and quality
  • Easy-to-use interface with colour-coded LED indicators
  • Preheats for accurate testing

Operating Instructions

  1. Turn on the device and allow it to preheat for approximately 1 minute.
  2. Ensure the test object is clean and free of grease.
  3. For diamond testing, touch the test head to the stone vertically and lightly.
  4. For gemstone testing, refer to the colour-coded LED indicators for hardness assessment.

Safety Precautions

  • Avoid testing metal objects.
  • Do not touch the test head with your bare hands or damp objects.
  • Remove gloves before testing to ensure accurate results.
Gemstone LED Indicator Interpretation
Diamond 9+ (Red) with beep Authentic diamond
Crystal 6th light Hardness 6-7, meets crystal hardness standard
Jade 6th light Good quality
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