Global Gem Testing Laboratory Pvt Ltd. Sri Lanka
We are an independent firm that identifies appraises and evaluates gemstones and jewellery. We perform these services for the jewellery trade and the public. We have with us highly experienced and qualified gemologists in our laboratory, with the membership of Alumni Association GIA, Gemologist Association Great Britain (FGA) and Gemologist Association Sri Lanka (MGA).
Member of Gemological Association of Great BritainAlumni Member of GIA
Please click here to validate certificates
Our Gem Certificates
We assure you a precise and accurate test report at all time
- Weight and measurement.
- Colour and other optical and physical properties.
- Species and variety of the specimens.
- Identify thermal treatment (heat un-heated).
- Oil treatment & lead glass treatment.
- Cobalt & titanium treatment.
- Beryllium diffusion treatment.
- Country of origin.
Our Clients
Contact us
Head Office
1223 Rajamalwatta Road,
Battaramulla,
Sri Lanka.
+94 72 782 4119
+94 76 821 3144
lab@ggtlsl.com
Bambalapitity Branch
5/3, Joseph’s Lane,
Colombo 04,
Sri Lanka.
+94 11 450 3689
+94 11 433 0271
+94 72 782 4119
+94 76 821 3144
lab@ggtlsl.com
Beruwala Branch
GTC,44/2B,17/1,
Sheikh Faccy Mawatha,
China Fort,Beruwala,
Sri Lanka.
+94 11 4330270
+94 45 4546133
+94 75 5687391
+94 76 8213144
lab@ggtlsl.com
