Gemtrue Arcus lab CVD vs HPHT Tester

With the increasing popularity of laboratory-grown diamonds, both CVD and HPHT diamonds are traded within the same category, although they may differ in market value. Therefore, reliable identification of the production method is essential.

Unlike conventional laboratory instruments, which are often large, expensive, and stationary, the Arcus Lab DK9800 features a compact pen-shaped design, making it ideal for jewelry stores, trade shows, laboratories, and mobile gemological applications.

LED Indicators

The tester provides instant results using colored LED indicators and an audible signal:

• 🔵 Blue Light: CVD Diamond
• 🟢 Green Light: HPHT Diamond
• 🔴 Red Light: Ruby or Sapphire
• 🟠 Orange Light: Metal Detected

This allows users to identify the material within seconds while reducing testing errors.

Key Features

• Ergonomic dolphin-inspired design.
• Retractable 0.6 mm thermoelectric probe for extended durability.
• Independent UV lamp.
• Lightweight and portable.
• Cost-effective alternative to large laboratory equipment.
• Ideal for:
  • Jewelry stores
  • Diamond dealers
  • Trade shows
  • Gemological laboratories

Technical Specifications

• Model: DK9800 Arcus Lab
• Application: Laboratory-grown diamonds only
• Display: LED indicator with audible alert
• Probe: Retractable 0.6 mm thermoelectric tip
• UV Lamp: Independent
• Dimensions: 160 × 30 × 23 mm
• Weight: 50 g (without battery)
• Power Supply: 1 × 9V battery (not included)
• Battery Life:
  • Approx. 3 hours continuous operation
  • Approx. 1.5 hours with UV lamp activated
• Operating Temperature: 18–28°C
• Storage Temperature: 20–40°C
• Humidity: 35–65%
• Low Battery Indicator: Yes
• LED Display: Yes
• Audible Result Notification: Yes

Package Contents

• 1 × DK9800 Arcus Lab Diamond Tester
• 1 × Metal Stone Holder Tweezers
• 1 × User Manual
• 1 × Protective Carrying Case

Important Notice

⚠ The DK9800 Arcus is NOT a universal diamond tester.

It should only be used after confirming that the stone is a laboratory-grown diamond using an appropriate screening instrument such as:

• DK10300 APEX

Once a laboratory-grown diamond has been identified, the DK9800 determines whether it was produced using the CVD or HPHT growth method.

It is not intended to test:

• Natural diamonds
• Cubic zirconia (CZ)
• Glass or other diamond simulants