Certificates from the Gemmological Laboratory Austria

At GLA sworn and certified court experts issue jewellery, gem and diamond certificates for you. We act without bias as our lab’s sole object is to issue certificates: we do not buy or sell jewellery, jewels or diamonds.

Your Gem report

To suit the customer’s requirements, we issue certificates with or without monetary appraisal. Experienced specialists from GLA certify diamonds, jewellery and gems.

We issue reports in Austria for:

  • Diamonds

  • Coloured diamonds

  • Rubies, sapphires, emeralds

  • Gemstones

  • Jewellery

Jewellery reports for insurances, inheritances, …

An exact diagnosis is carried out in our modern laboratory equipped with the latest facilities. By constantly pursuing further education and keeping in contact with national and international experts, we have access to up-to-date trade knowledge. We issue reports for example for insurances or in the process of inheritance. As required, we are happy to provide a monetary appraisal or simply establish whether the stones or items of jewellery are genuine and what their quality is.


Information about Cookies and Data Protection:

This website uses cookies. Cookies are small pieces of text, a web browser stores on the user’s device. They cause no harm.

Cookies that are required for the functionality of the website are set in accordance with Art 6 para. 1 lit b) GDPR (legal basis). All other cookies are only stored providing that you give consent according to Art 6 para. 1 lit a) GDPR (legal basis).

You have the right to withdraw your consent at any time. The withdrawal of consent does not affect the lawfulness of processing based on consent before its withdrawal. You are not obliged to give your consent in order to use the website. You can use the website irrespectively of your given, refused or withdrawn consent. However, the functionality of the website may be limited, when you refuse or withdraw your consent.

The offered information on this website is not addressed to children and persons below the age of 16.

To withdraw your consent or to restrict cookies, you have particularly the following possibilities:

Necessary Cookies:

This website could use the following cookies that are essential for operating the website:

Optional cookies for marketing and analysis purposes:

Cookies that are set for marketing and analysis purposes usually are stored longer than for the particular session; the precise storage time can be learned from the guidelines of the respective providers.

Additional information about the utilization of personal data in connection with the usage of this website can be found in our Data Protection Guidelines in accordance with Art 13 GDPR.