Welcome
Welcome to the official website of Australia's leading
Gemmological and Diamond Grading Laboratory.
We invite you to explore our website, which includes information about our company and the services that the Laboratory can provide.
For specific information regarding Diamond Grading and Gemmological Reports, please use the "Services" tab to find the desired field.
Further information relating to Diamonds and Gemstones can be found in the "Education" section, this area will be updated continually so please be sure to keep checking back for information relating to new treatments or procedures seen by GSL as stones are assessed in the Laboratory.
Please do not hesitate to contact us should you require any further information relating to the Laboratory and the services that we provide.
Our "Report Check" service can be used to search previous GSL Reports issued after 1st January 2017 by their GSL Reference Number.
For information about reports issued before January 2017 please contact us directly by email or phone.
For specific information regarding Diamond Grading and Gemmological Reports, please use the "Services" tab to find the desired field.
Further information relating to Diamonds and Gemstones can be found in the "Education" section, this area will be updated continually so please be sure to keep checking back for information relating to new treatments or procedures seen by GSL as stones are assessed in the Laboratory.
Please do not hesitate to contact us should you require any further information relating to the Laboratory and the services that we provide.
Our "Report Check" service can be used to search previous GSL Reports issued after 1st January 2017 by their GSL Reference Number.
For information about reports issued before January 2017 please contact us directly by email or phone.