ISGJ & TGL Gem Lab
A Strategic Collaboration in Sri Lanka

The International School of Gems & Jewellery (ISGJ) is a globally recognized institution with over 25 years of experience. It offers a comprehensive suite of programs in gemology, jewelry design, diamond grading, and business management, across campuses in India and Sri Lanka.

About TGL Gem Lab

Founded in 2016 by GIA-certified gemologist Kasun G. Madivila, TourmalineLanka Gemological Laboratory (TGL) has established itself as Sri Lanka’s premier colored-stone testing facility. With branches in Beruwala, Ratnapura, Galle, Kandy, Bangkok, and services extending to China, TGL is known for its world-class instrumentation and scientific rigor in gem identification and certification.

Synergies: Connecting Education with Applied Gemologyt

Curriculum Integration

ISGJ’s academic modules in gemstone identification, treatment detection, and origin analysis align seamlessly with TGL’s lab protocols, including FTIR, LIBS, Raman spectroscopy, and ED-XRF.

Hands-On Training

ISGJ students gain direct experience in TGL’s advanced Sri Lankan facilities. They participate in live lab work and essential field visits to gem mines in Ratnapura and market tours in Beruwala and Galle.

Quality Certifications & Career Pathways

Graduates receive UGC-recognised, international-standard credentials, supplemented by real-world lab proficiency at TGL. Graduates also benefit from full job placement support, both within Sri Lanka and through ISGJ’s global career network.

Research and Community Impact

Joint research initiatives—including studies on rare gemstones—underscore the collaboration’s focus on science, provenance, and ethical sourcing practices.

Key Benefits of the Collaboration

Advantage Outcome
Unified Curriculum & Lab Training Graduates are well-versed in both ISGJ theory and TGL practice.
Immersive Industry Exposure Field visits enhance understanding of mining, processing, and local trade ecosystems.
Globally Recognised Credentials UGC-approved academic certification paired with hands-on lab skills.
Career Support & Placement Access to local and international opportunities.
Ethical & Scientific Collaboration Promotes research and sustainable gem commerce in Sri Lanka.

Our Services

Have any Questions? Call us Today!

වාග් විභුෂණ කිර්ති  ශ්‍රී  දේශ  බන්දු  ලංකා පුත්‍ර 

Dr. KASUN G. MADIVILA
GG, AJP (GIA)

Graduate Gemologist 
TGL-Group | Founder
Gemological Institute of America (GIA)
National Tourist Guide Lecturer
Gem Market, Patte Kade,
China Fort, BERUWALA, SRI LANKA.
Rathnapura * Galle * China 
Call: +94 34 2277511
Mobile: +94 766 343430

Future Outlook

  • Expansion of joint research projects and publication of findings.
  • Enhanced integration with guest lectures and workshops led by TGL experts.
  • Stronger alumni mentorship linking Sri Lanka to international gem markets.

Reach Out

  • ISGJ Sri Lanka Campus – Courses in gemology and jewelry design, with international placements.
  • TGL Gem Lab – Leading Sri Lankan gemstone lab with cutting-edge labs and a culture of excellence .

Contact Us

Head Office(India)
Address: ISGJ  – International School of Gems and Jewellery
Opposite Science Center, Citylight,
Surat, Gujarat – 395007, India
Call/Whatsapp: +91 99250 50423
Email: connect@isgj.org
Web: www.isgj.org

Our Services

Have any Questions? Call us Today!

වාග් විභුෂණ කිර්ති  ශ්‍රී  දේශ  බන්දු  ලංකා පුත්‍ර 

Dr. KASUN G. MADIVILA
GG, AJP (GIA)

Graduate Gemologist 
TGL-Group | Founder
Gemological Institute of America (GIA)
National Tourist Guide Lecturer
Gem Market, Patte Kade,
China Fort, BERUWALA, SRI LANKA.
Rathnapura * Galle * China 
Call: +94 34 2277511
Mobile: +94 766 343430