Which gem appraisal certificate is authoritative
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Which gem appraisal certificate is authoritative
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1. American Gem Institute
GIA Institute of America is the promotion of diamond appraisal certificates into the founder of internationalization.
The was founded by Mr. Robert Shipley in 1931, and has a history of nearly 86 years. GIA's reputation is a non -profit institution. Essence
2, International Gem Institute
Thentewope, which was founded in the World Diamond Center in 1975, is currently the world's largest independent jewelry appraisal laboratory.
Extension information
. The International Certificate of the American Gem Institute
GIA International Certificate Diamonds are recognized internationally. Since 2006, GIA American Gem Institute has officially launched the GIA diamond appraisal certificate online query system globally. The launch of the system has played a great role in the inquiry and anti -counterfeiting of the identification certificate.
. The full name of the International Gemstones of International Gemstones
IGI is the International Gem Institute. Established in Antwerp, Belgium, at the beginning, it only made a private diamond appraisal for a few diamond family in Belgium. Later, some high -quality drills were sold to various royal family in Europe. The name of IGI gradually spread between the royal family. Everyone knows the later things.
The royal family in Europe, the Middle East, and Asia sent some fine jewelry that is difficult for ordinary appraisers to identify to Belgium for IGI for analysis. Because many of these jewelry have been inlaid into very complicated head crowns, necklaces, rings, etc., they must have a wealth of experience in Fine Jewelry identification. IGI has gradually developed from only a diamond appraisal to a global gemstone institution that specializes in diamonds and high -end jewelry.
Reference
Baidu Encyclopedia -American Gem Academy
Baidu Encyclopedia — International Gem Institute
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The world's three major gem appraisal agencies are:
1, GIA -of America
GIA's Institute of American, the founder of Diamond 4C, it was MR. Robert Shipley was founded in 1931 and is known as Harvard in the gem world. Its diamond appraisal certificate is the world's most authoritative identification certificate.
2, IGI -Institute (International Gem Institute)
IGI Institute (Institute), currently the world's largest independent gem appraisal laboratory and gemstone research and education institution. one.
It a total of 12 laboratories in major diamond trading centers (Antwerp, New York, Toronto, Dubai, Tokyo, Hong Kong, Traviv, Los Angeles, and Mumbai), which are called "authoritative appraisal house around consumers" Essence
3, HRD ——Hoge Raad Voor Diamant The business of the Ministry of the World Diamond Center Antwerp's appraisal certificate began in 1976. It is one of the world's authoritative diamond inspection, research and certificate issuance agencies. It is at the forefront of global diamond processing and testing technology and equipment research.
The appraisal certificates issued by these three institutions are authoritative, and they are authoritative and liquid worldwide.
The expansion data
1, GIA: Breakthrough research of American Gem Academy and its own education, experiment and equipment development process are almost chronicles of the growth of jewelry industry. Since 1953, Richard T. The international diamond grading system founded and promoted by Liddicoat to the most respected and authoritative diamond diamond grading college in the world as the world's most respected and authoritative diamond grading.
gia By discovering, teaching, and application of gemstone knowledge to ensure the credibility of jewelry and diamonds.
2, IGI: As the only transnational global laboratory in the world's three major authoritative appraisal agencies, IGI solves the problem of high standards of standards for each laboratory. The famous MONT BLANC, Cartier, Escada, etc. choose IGI to provide identification or training services.
igi certificate accounts for 35 % of the global jewelry appraisal certificate market, which is equivalent to the GIA of the American Gem Institute. IGI has a total of 800 professionals. IGI is also the only laboratory in the world that has passed (ISO) 9001: 2000 certification in five countries and regions.
Reference information Source: Baidu Encyclopedia -Jewelry Appraisal Certificate
Certificate name
NGTC
The national jewelry and jade quality supervision and inspection center (referred to as inspection center) is a national jewelery and jade professional quality inspection institution authorized by relevant state competent departments according to law. It is the authority of Chinese jewelry and jade testing. The inspection center provides commissioned inspection services for the society, undertakes the national market supervision and inspection, arbitration inspection, import and export commodity inspection, and formulated and revised relevant national standards. It plays a guiding role in regulating the domestic jewelry market and promoting the healthy development of the jewelry industry.
gig
The Asian Gem Association (referred to as GIG) is an independent non -profit organization in the Asia -Pacific region. As the authority of gem identification, it is famous for justice and rigor. GIG's testing and appraisal of color gems and local jade is more focused. It also reviews high -level gem appraisers. Through review, the title of gem experts can be awarded. There are currently inspection centers in Shanghai, Beijing, Hubei, and Jiangsu.
gia
The diamond appraisal from the American Jewelry Academy proves that internationally famous diamond appraisal agencies, diamonds have laser coding consistent with certificates, and can also be queried on the official website. The American Gem Institute (GIA) was established in Los Angeles in 1931. It founded and proposed the international hierarchical system. Headquarters is located in Los Angeles. The college is trusted in the world in diamond grading and gemstone appraisal, and is known for its knowledge and expert status in treasure jade. In fact, the GIA diamond grading report and GIA diamond treatment are considered to be the world's number one gem certificate. Diamonds of various sizes are sent from all corners of the world to the college for analysis.
The breakthrough research on American Gem Institute and its own education, experiment and equipment development process are almost chronicles of the growth of jewelry industry. Since 1953, the international diamond grading system founded and promoted by Richard T. Liddicoat to the most respected and authoritative diamond diamond class college in the world as the world's most respected and authoritative diamond grading. GIA has to ensure the credibility of jewelry and diamonds by discovering, teaching, and application of gemstone knowledge.
igi
The International Gem Academy is located in Antwerp and is the oldest gem college. In 1975, laboratories were established in New York, Bangkok, Mum and Tokyo. The IGI diamond report is essentially a statement. It uses the world -identity system to verify the authenticity of diamonds and provide reliable and correct diamond identity and level. Each diamond is described by several accurate diamond -cutting quality and characteristics through professional instrument analysis. Explain the detailed information of diamonds by easy -to -understand language. The level and quality of each diamond are generally recorded in the IGI diamond report based on 4C (carat weight, color, clarity, and cut) as the analysis structure.
gic
This Chinese University of Geosciences established a gemstone research room in 1983, developed into a second -level institution of gemstones in 1989, and approved the establishment of the jewelry college in 1992. The center mainly serves the society for appraisal, consulting, training, exhibition, production, processing, and is widely served. At present, thousands of backbones have been cultivated for various jewelry inspection agencies and production and processing wholesale units, and hundreds of senior appraisers are hailed as "treasure education cradle" by domestic and foreign. Each year for social appraisal, consult hundreds of thousands of jewelry and jade.
In the case of international certificates, the use of more certificates in China is the GIA certificate in the United States and the certificate issued by the world's largest gem experiment. Essence
The domestic certificate, of course, the certificate of the National Inspection (NGTC) is the most authoritative. Essence
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