GLC Full Gemstone Analysis Report with Origin Analysis

The Chanthaburi Gemological Laboratory (GLC) issues this comprehensive report documenting the full gemological analysis of your gemstone, including detailed measurements and expert evaluation, as well as an expert opinion on its geographic origin.

What’s included

• Gem identification (species/variety)
• Key parameters: weight, shape/cut, color and measurements
• Additional gemological properties such as hardness and primary color
• Treatment indication stated in the comment field (e.g., no indication of heating, indication of heating, or other observable enhancements such as filling)
• Geographic origin determination (when determinable)
• Reference photograph printed on the report
• Official GLC document reviewed by laboratory gemologists
  
  

Important: Origin determination represents an expert gemological opinion based on testing and comparison with known reference materials.
While laboratories use advanced methods and extensive reference collections, origin conclusions are expert assessments rather than absolute guarantees.

Suitable for

• Higher-value loose gemstones
• Calibrated gemstones
• Collector gemstones
• Rubies and sapphires where origin significantly affects value
• Investment-grade gemstones

How it works

1. Add this certification to your cart together with your gemstone.
2. We submit the item to Chanthaburi Gemological Laboratory (GLC) for the gemstone report.
3. Once complete, we ship your order together with the GLC certificate.
   
   

⏳ Processing time: about 5–7 business days (may vary with lab workload).

📄 Certification fee: 1,200 THB (38.20 USD) — included in checkout total.

Questions or need treatment/origin analysis instead? Contact us and we’ll recommend the right GLC plan.