Diamond Tester Pen Gemstone LED Light Hardness

Diamond Tester Pen Gemstone LED Light Hardness

Key Features:

• Precision detection – accurately identifies diamonds and moissanites with audio and visual alerts
• Compact design – 160 × 40 × 22 mm, 130 g, pocket-sized for portable use
• Non-destructive – safe probe testing without damaging gemstones
• Smart operation – auto power off after 3 minutes to conserve battery
• Complete kit – includes leather case and manual (9V battery not included)

Technical Specs:

• Detection method: Thermal conductivity
• Power: DC 9V battery (alkaline recommended)
• Operating temperature: 5–35°C (below 80% humidity)
• Response time: 1 second for diamond test / 0.5 second for moissanite verification

How to Use:

• Power on and wait for the READY light (about 10 seconds warm up)
• Hold the gem against the metal plate and lightly touch the probe to the stone
• Results:
  • Diamond: continuous buzzer and green light (about 6 seconds)
  • Moissanite: pulsing tone and blue light
  • Glass/fake: no reaction

Package Includes:

• 1 × Diamond tester
• 1 × User manual
• 1 × Leather protective case

Notes:

• Requires a 9V battery (sold separately)
• Test clean, dry gemstones at room temperature