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OUR MISSION

The International Colored Gemstone Laboratory (ICL) is a gemological laboratory providing gemological reports using its own proprietary grading system. Established in Bangkok, ICL operates under strict rules and represents the highest standards of gemological grading. Accuracy, Reliability, Accountability and Efficient Service, are the foundations upon which we serve.

Our Reports

Understand our reports and how to interpret them.

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How we grade

Our grading system is at the heart of what we do.  Take a closer look to understand it better.

Gemstone Knowledge

Improve your knowledge of coloured gemstones

OUR STORY

Highly trained gemologists, for accurate and unbiased analysis

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SUSTAINABILITY

"Creating a long term positive impact and championing
transparency across the industry"

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Gemstones That We Test

Our Report Types

ORIGIN REPORT

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IDENTIFICATION REPORT

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Affiliations

ICL is proudly associated with world’s leading gemology institutes and organizations

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