First, scan the QR code directly: scan the QR code at the lower right of the certificate appraisal report with your mobile phone, and a link of the guild official website will automatically pop up on your mobile phone. Click according to the prompt, and the gem identification result will pop up.
Second: Log in to official website, and enter the certificate number in the search bar on the homepage of the website to inquire.
A number of high-end anti-counterfeiting technologies are adopted in the production process of guild certificates to provide customers with the most unique and safest services. In addition, by querying the electronic certificate, the information in the physical object, paper certificate and electronic certificate is corresponding, especially the weight, size, shape and color of the gem. When the three are completely corresponding, it can basically be confirmed that the certificate is true.
Guild certificate begins at 1980. It is a jewelry appraisal certificate issued by GUILD Gemological Laboratory in the United States, founded by American gemologist Charles Carmona. Guild Gem Laboratory has been devoted to the research and testing of gems. After more than 40 years of continuous development, the laboratory has formed a complete testing system, and the testing report framework is constantly updated and expanded.
The types of inspection reports that can be issued are super report, standard report, file report and prestige report, which are suitable for all kinds of gems and meet the inspection requirements of all kinds of gems in the market.
The above reference source: Baidu Encyclopedia-Guild Certificate