GemTrue Apex – Advanced Synthetic Diamond Tester

We ship worldwide from Belgium within 1–2 business days using trusted carriers including FedEx, TNT Express and DPD.

You can expect your parcel within 2 to 8 business days from when it leaves our warehouse.

Shipping costs are calculated at checkout based on your destination and parcel weight. Tracking is provided where available.

International orders may be subject to local customs duties or taxes.

The GemTrue APEX DK10300 is a professional-grade, all-in-one synthetic diamond tester designed for accurate and reliable gemstone identification. Engineered with advanced optical and thermal conductivity technology, this pen-style device delivers fast, precise results with 0% false positives (ASSURE tested)—making it an essential tool for jewelers, gemologists, and diamond traders.

Key Features

• Multi-Stone Detection: Accurately identifies Natural Diamonds, CVD/HPHT (Type IIa) diamonds, Moissanite (including low-conductive), Cubic Zirconia (CZ), glass, and other simulants
  
• 0% False Positive Rate: Independently ASSURE-tested for trusted accuracy
  
• Advanced Technology: Combines optical and thermal conductivity for precise readings
  
• Fast & Clear Results: Instant visual and audio feedback for quick decision-making
  
• Versatile Testing: Suitable for loose and mounted stones (rings, earrings, pendants)
  
• Portable Design: Compact, durable, and ideal for retail, labs, and on-the-go use
  
• Rechargeable Battery: USB-C charging for convenience and long-lasting performance
  
• User-Friendly Interface: High-resolution display for easy operation
  

Performance & Usage

• Optimized for polished stones in D–M color range
  
• Designed for round brilliant-cut stones (minimum size: 0.05 ct)
  
• Effective for both professional lab use and retail environments
  
• Provides consistent results with proper cleaning and cooling between tests
  

Product Specifications

• Model: DK10300 APEX
  
• Detection Types: Natural Diamond, CVD/HPHT, Moissanite, CZ, Glass, Simulants
  
• Display: High-resolution screen with audio alerts
  
• Battery: Built-in Li-ion rechargeable (USB-C, 3.7V / 2200mAh)
  
• Battery Life: ~2 hours continuous use
  
• Auto Power Off: After 5 minutes inactivity
  
• Dimensions: 180 x 40 x 25 mm
  
• Weight: Approx. 0.13 kg
  

Package Includes

• GemTrue APEX DK10300 Tester
  
• Metal Loose Stone Holder
  
• USB-C Charging Cable
  
• Cleaning Cloth
  
• Protective Cloth Bag
  
• Zip Carrying Case
  
• User Manual
  

Safety & Care

• Emits brief UV light during testing—avoid direct eye exposure
  
• Use only recommended charger (DC 5V / 0.5A)
  
• Clean probe tip and stones regularly for accurate results
  
• Allow stones to cool between tests
  

Warranty

• 24-month manufacturer warranty (device)
  
• 6-month battery coverage
  
• Covers manufacturing defects only
  

The GemTrue APEX combines precision, speed, and reliability in one compact device. With ASSURE-certified accuracy and multi-stone detection, it’s the perfect solution for professionals who need dependable gemstone testing at an affordable price.