What certificate do you have to buy diamonds

I want to buy a diamond ring to propose, and when choosing, those customer service staff told me to buy diamond rings. Those who have a certificate to have certificates are more guaranteed. I want to ask what certificate?

5 thoughts on “What certificate do you have to buy diamonds”

  1. The relatively authoritative international diamond certificates are GIA and EGL, while the more authoritative domestic is NGTC. As long as the diamonds they buy are one of the certificates, consumers believe that the GIA international certificate is more authoritative than that of the GIA international certificate.
    It, the result of each appraisal certificate is real and effective. As long as it is the result of a qualified formal appraisal agency, there is credibility and authenticity, but some institutions have stricter in the appraisal process. The classification of colors or clarity will obtain different results because of their different focus.
    If you care more, you can use the GIA certificate results as the final reference.
    Certificate types:
    I international diamond grade certificates recognized internationally:
    Igi Academy (IGI) -IGI Diamond Level Certificate
    International Gem Institute IGI is the world is the world. The largest independent gemstology appraisal laboratory and gemstone research and education institutions, in major diamond trading centers and central cities around the world (Antwerp, New York, Toronto, Dubai, Tokyo, Hong Kong, Traviv, Los Angeles, Mumbai) The gemstone people who have more than 96 countries around the world have accepted IGI's laboratory and educational scientific research services
    Wide experience, professional opinions, and long -term reliable and upright reputation make the IGI become synonymous with reference standards in the jewelry industry. IGI's decades of appraisal has developed patent technologies such as laser -engraving, dark room photos and creating and promoting the 3EX cutting evaluation system. It has been the leader and standardized maker of global gemstology for a long time.
    GIA Diamond Level Certificate
    The American Gem Academy is an independent non -profit organization. The breakthrough research of this college and its own education, experiments and equipment opening
    This process witnessed the chronicles of the growth of jewelry industry.
    gia diamond grading report and GIA diamond treatment are considered world -renowned gem certificates. Diamonds of various shapes and sizes are sent from all corners of the world to the college for analysis.
    The Belgian diamond high -level parliament -HRD diamond grade certificate
    Belgian diamond senior parliament is the official recognition of representing the Belgian diamond business industry. Its headquarters is located in the World Diamond Center Antwerp.
    HRD diamond color certificate pays attention to the detailed features that determine the value of color diamonds, such as color description, color design and glowing. It has an important position for whether the diamond is naturally colored diamond or imitation diamonds after the test.
    AGS Diamond Level Certificate
    The American Gem Society to lead the industry through strict grading standards and provide detailed information. Primary consumers can understand diamond grading with simple and easy -to -understand numbers and methods.
    The detailed diamond information provided by diamond wholesalers and processors often use the AGS certificate to purchase batch diamonds in the world.
    European Gem Institute -EGL diamond grade certificate
    egl was established in 1974. Its customers are mainly professional wholesalers, retailers and cutting factories. Essence
    The appraisal in the United States and Belgium has a certain professional status and popularity. Its appraisal certificate is sufficient to provide all the information of the diamond, including the physical properties of the weight, color, clarity, and size of the diamond for the reference of the industry and consumers.
    In 2008, EGL established an independent third -party diamond appraisal laboratory in Hong Kong, named EGLASIA, providing more secure and fast diamond appraisal services for Asian diamond customers. EGL Asia established two offices in mainland China: Shanghai Office and Shenzhen Office.
    The National Jewelry Jade Quality Supervision and Inspection Center -NGTC diamond grading certificate
    National Jewelry and Jade Quality Supervision and Inspection Center (referred to as inspection Center) is a national jewelry and jade professional quality inspection institution authorized by relevant national competent departments in accordance with the law. Essence The diamond grading system used by the National Inspection also arranges the level in turn in accordance with the cutting level of the diamond cut, color, and clarity.
    Memex® Systems, Inc Gemex® Certificate
    GEMEX® Certificate is the brightness of the diamond (white light), Fire fire color (color light) and Sparkle flash ( Flash) Certificate of rating.
    GEMEX is an American diamond optical appraisal agency, which has created the concept of scientific measurement of diamond optical effect certification. The precedent of using visual indicators (the beauty of diamonds) to evaluate and compare diamonds.
    Pucting information:
    The authenticity of the certificate
    1. According to the certificate number and the diamond carat size, the official website of the testing agency is inquiry.
    The official website address will be printed on the opposite side of each certificate. If not, you can also find it through Baidu. rn二、看与证书配套的钻石的腰棱激光印记编号是否与证书一致(该步骤适合于带激光印记钻石)rn在购买GIA或者IGI等有激光印记的钻石时,请The staff guidance and assistance used the correct and simple methods to verify this laser mark with 10 times large mirror, professional diamond lamp, diamond table and other tools.
    . See if the defect location of the diamond is consistent with the certificate labeling (this step is suitable for the laser -free diamond certificate)
    purchases any diamonds with an international certificate. There are clear flaws on the certificate. When the location of the defect cannot be determined consistent with the certificate, it is recommended to review it at a third -party appraisal agency.
    . The certificate number of checking the official website is consistent with the laser mark. The weight of the dedicated electron is used to verify the weight of the diamond.
    If Note:
    The diamonds are less than 30 points. Generally, there will be no dedicated GIA certificate. Because diamond suppliers are different, some diamonds with more than 30 points may also have no laser number. The certificate of some diamond products is not a single diamond certificate, but a certificate of the finished product.
    If it is the newly processed diamond product, its certificate may not be found within three days, not that this is a fake certificate, but because the information of the test center cannot be updated in time.

  2. 1. Diamond certificate, can also be called diamond grading certificate (Diamond Grading Report), Diamond Quality Report, is based on the 4C standard for diamonds. Standardly observe and detect a report of diamonds to form. Among them, placing diamonds at ten times the magnifying glass to analyze its size, clarity, cutting, polishing, symmetry and other characteristics. It also includes determining the color level of the diamond, fluorescent detection, etc.
    2. The identification issued by different institutions has different certificates. The identification level of each appraisal agency and the advanced nature of the instrument determine the reliability and authority of the certificate.
    3, diamond certificates are mainly: American Gem Institute (GIA) -gia diamond grade certificate, European Gem Institute -EGL diamond grade certificate, International Gem Institute (IGI) -ii diamond grade certificate, Belgian diamond senior parliament ——HRD diamond grade certificate, American Baoyu Society -AGS diamond grade certificate, National Jewelry and Jade Quality Supervision and Inspection Center -NGTC Diamond Tie Certificate.
    4, the relatively authoritative international certificate is GIA and EGL, and the authoritative domestic is NGTC.

  3. Pay content for time limit to check for freenAnswer we are usually attached to the diamonds.nSome common national inspection diamond certificates: NGTC (National Jewelry and Jade Quality Supervision and Inspection Center) GIC (China University of Geosciences (Wuhan) Jewelry College) NHQSIC (National Jewelry Quality Supervision and Inspection Center)nFor consumers, when buying diamonds, as long as there are three authoritative recognition signs on the National Inspection Certificate, it is more reliable:nIf the national inspection certificate of the purchased diamond has the above qualifications, it means that this certificate is relatively rigorous.nSuch as thisnMore 8nBleak

  4. For Chinese buyers, the diamond appraisal report can be divided into two categories. The largest category is internationally, such as: GIA, SSEF, HRD Antwerp, etc., and some small institutions. The second category is in China, such as: NGTC, GIC, etc.

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