5 thoughts on “What are the certificates of diamonds?”
Reginald
Diamond test certificates are: National Jewelry and Jade Quality Supervision and Inspection Center -NGTC Diamond Tie Certificate Society -AGS Diamond Level Certificate International Gem Institute -IGI Diamond Level Certificate European Gem Academy -EGL diamond grade certificate
gia is the earliest institution to provide diamond detection services. And the information issued by the certificate is more comprehensive, so many people like the GIA certificate. In fact, the National Inspection Certificate NGTC is often higher than GIA requirements in terms of clarity requirements. It is very relieved to issue a formal national inspection certificate.
Different testing agencies will issue different appraisal certificates. The content is roughly the same and the standards are basically the same. National Inspection NGTC Certificate. Generally speaking, the national inspection certificate is more stringent in color and clarity, often one level lower than the parameters of the GIA certificate; the GIA certificate cutting is more detailed
Diamond certificates generally include foreign certificates and domestic certificates The foreign certificates have 4 more common certificates: 1. GIA of the American Gem Academy, 2. HRD of the Belgian Diamond High -level Council, 3. The Laboratory of the European Gem Academy Laboratory EGL, IGI Diamond Certificate at the Laboratory of Belgium Gem Institute. Colid Certificate: National Jewelry and Jade Quality Supervision and Inspection Center -NGTC Diamond Tiered Certificate,
The more authoritative diamond certificate is internationally recognized internationally internationally, and the most authoritative in China is the NGTC certificate. There are also 4 other international diamond certificates.
Diamond test certificates are:
National Jewelry and Jade Quality Supervision and Inspection Center -NGTC Diamond Tie Certificate
Society -AGS Diamond Level Certificate
International Gem Institute -IGI Diamond Level Certificate
European Gem Academy -EGL diamond grade certificate
gia is the earliest institution to provide diamond detection services. And the information issued by the certificate is more comprehensive, so many people like the GIA certificate. In fact, the National Inspection Certificate NGTC is often higher than GIA requirements in terms of clarity requirements. It is very relieved to issue a formal national inspection certificate.
Different testing agencies will issue different appraisal certificates. The content is roughly the same and the standards are basically the same. National Inspection NGTC Certificate. Generally speaking, the national inspection certificate is more stringent in color and clarity, often one level lower than the parameters of the GIA certificate; the GIA certificate cutting is more detailed
Diamond certificates generally include foreign certificates and domestic certificates
The foreign certificates have 4 more common certificates: 1. GIA of the American Gem Academy, 2. HRD of the Belgian Diamond High -level Council, 3. The Laboratory of the European Gem Academy Laboratory EGL, IGI Diamond Certificate at the Laboratory of Belgium Gem Institute.
Colid Certificate: National Jewelry and Jade Quality Supervision and Inspection Center -NGTC Diamond Tiered Certificate,
The more authoritative diamond certificate is internationally recognized internationally internationally, and the most authoritative in China is the NGTC certificate. There are also 4 other international diamond certificates.
Why didn't I buy a diamond ring? fake?