All diamond jewelry provided by Chery is analyzed and graded by national appraisal institutions, including the National Jewelry and Jade Quality Supervision and Inspection Center (hereinafter referred to as the National Inspection) and internationally renowned professional appraisal institutions, such as Gemological Association of America (hereinafter referred to as GIA) and Belgian Diamond High Council (hereinafter referred to as HRD). These evaluation agencies have a good reputation in the global diamond industry because of their strict, consistent and fair evaluation of diamonds.

The origin of diamond appraisal certificate

Gemological Institute of America (GIA) was established in Los Angeles, 193 1. GIA is a non-profit organization established with the support of famous American jewelers and celebrities. Therefore, GIA is an appraisal and research institution enjoyed by American jewelers, and its subordinate institutions, such as GTL, provide appraisal services for jewelers and are widely trusted by all walks of life.

Certificate of international and domestic authority

GIA diamond grade certificate, issued by GIA.

HRD diamond grade certificate, issued by Belgian Diamond High Council.

AGS diamond grade certificate issued by American Gemological Association.

IGI diamond grade certificate issued by the International Gemological Association.

EGL diamond grade certificate issued by European Gemological Institute.

NGTC diamond grading certificate is issued by the National Jewelry and Jade Quality Supervision and Inspection Center.

CTA diamond grading certificate issued by China Quality Inspection Alliance Gold and Silver Jewelry Testing Center.

GJC Jewelry Inspection Certificate is issued by the National Light Industry Jewelry Quality Supervision and Inspection Center.

GAC diamond grading certificate, issued by China Gemstone Association.

GTC Gem Appraisal Certificate is issued by Jewellery Testing and Research Center of Jewellery Chamber of All-China Federation of Industry and Commerce.

GIC mosaic diamond grading certificate issued by Dida Gemstone Testing Center of China Geo University.

How to query GIA diamond certificate online and understand the query results?

You can visit GIA official website to inquire about http://www.gia.edu/reportcheck..

Query needs to enter certificate number and carat weight.

Please note that before buying diamonds, you should carefully check the copy or duplicate of the diamond certificate, because this is the only guarantee for you to ensure the quality and value of diamonds.

This rule was updated on April 20 12 18, and will take effect from the date of update.