Expertise Behind
Every
Analysis.
Our laboratory is led by certified gemmologists and research scientists with deep expertise in classical gemmology, advanced spectroscopy, and machine learning applications.
Mr. Tasnara Sripoonjan
Laboratory Director & Lead Researcher
Oversees all analytical workflows, calibration protocols, and research projects. Specialises in applying machine-learning algorithms to spectroscopic data for geographic origin classification and treatment detection. Published researcher with presentations at IGC, GIT, and industry conferences worldwide.
Phase Transformation of Epigenetic Iron Staining: Indication of Low-Temperature Heat Treatment in Mozambique Ruby
Machine-learning Applications in Gemmology: Classifying the Geographic Origin of Ruby and Sapphire Using Chemical Data
A Machine Learning Approach in Ruby and Sapphire Origin Determination
Mr. Chanenkant Jakkawanvibul
Senior Gemmologist
Experienced gemmologist specialising in classical identification techniques, jade authentication, and client-facing educational activities. Regularly conducts workshops and speaks at industry events on gemstone authentication and the application of technology in traditional gemmology.
Geographic Origin Determination of High-quality Green Jadeite-Omphacite Jade (Fei Cui) from Myanmar, Guatemala and Italy Using Statistical Processing Coupled with Spectroscopic and Chemical Analyses
Corundum – Colour Grading of Ruby, Blue Sapphire and Fancy Sapphires - GIT STANDARD GIT 1011.2-2565
Luminescence and a new approach for detecting heat treatment of geuda sapphire
Active in the Global Community.
International Conferences
Regular presenters at IGC, GIT, CIBJO, and regional gemmological conferences—sharing research and advancing industry knowledge.
Academic Collaboration
Guest lecturers at Chiang Mai University (STeP) and Srinakharinwirot University, bridging laboratory practice with academic training.
Published Research
Peer-reviewed publications on machine-learning applications in origin classification, spectroscopic methods, and garnet characterisation.
Work With Our Team.
Our gemmologists are ready to assist with your testing, research collaboration, or industry speaking engagements.
Contact Laboratory