Allow your gems to shine with GGL
Your Trusted Gemstone Laboratory
GLOBAL GEM-TESTING LABORATORY LIMITED
Global Gem-testing Laboratory Limited, GGL, your trusted partner in gemstone testing and certification.
As a gemstone laboratory for over 20 years, over 100,000 gemstones are tested by our team of gemologists. Over the years, thanks for the support of customers, it provides a strong evidence of the authenticity in the industry. As a third-party gemstone laboratory, accurate and reliable testing services are provided on all types of gemstones. Team of expert gemologists has years of experience in the industry and uses the latest testing equipment and techniques, to ensure to have the most precise and trustworthy results.
Expertise & Accuracy
Most gemologists in the team worked in the industry for over 15 years. They are professionals who have extensive knowledge and experience in the industry and can provide accurate and reliable results. This is key factor to provide reports with accurate and reliable results helping one to make important decisions when purchasing a gemstone.
Transparency & Professionalism
Trust is essential when it comes to gemstone testing, transparency in the testing processes is prioritized. Reports are clearly outlined the tests that were performed and how the results were interpreted. The highest level of accuracy and professionalism in every report are guaranteed.
Efficiency, Excellent & Timely Service
Time is of the essence in the jewelry industry, reports are provided as quickly as possible without compromising the accuracy of testing. Located in the heart of the jewelry manufacturing industry in Hong Kong, it is easy and convenient for you to access our services.
Excellent customer service team is always available to answer any questions in a timely and professional manner, which is believed to be the key factor on establish a long-term mutual trust relationship.
