5 thoughts on “I bought a diamond ring. I want to identify it. How can I identify it”
Maggie
Mengkela "a diamond's IGI identification process" when a diamond is sent to the identification laboratory, what kind of inspection and test will it undergo? What is the most rigorous and precise result that consumers can get first of all, when a batch of diamonds to be inspected is sent to the IGI laboratory, the staff will record its sender, number, delivery date and items to be identified. Some diamonds only need to do a few items in 4C, while some diamonds need to do more tests in addition to regular items, such as eight arrows and eight hearts. This will be classified in the beginning next, the staff of IGI will immediately weigh the diamonds one by one and take them to three decimal places (so as to avoid confusion of diamonds as much as possible), and then pack them separately and assign a unique number to each diamond. this number will never be repeated and will accompany the diamonds throughout the laboratory. These measures are all aimed at ensuring the correspondence between diamonds and their certificates in the future
then diamonds will enter the real identification process. First, diamond-sure or diamond-view is used to identify whether the gemstone submitted for inspection is a real untreated natural diamond. This step is called the fifth C of diamonds, that is, its authenticity. Any diamond in question found at this stage will be sent to the special department of IGI, where complex instruments such as Raman spectrometer and liquid nitrogen test will be used to determine the type of this diamond, and further tests will be conducted for this type of diamond. If they are finally identified as natural diamonds, they will return to the identification process. If not, then the identification process will stop. Most diamonds have successfully passed the identification of the first pass. Then, it is arranged to send the diamonds to various departments of the IGI laboratory in order for other 3C evaluations. First, the computer will use software to scan all aspects of data, determine the shape and type of diamond cutting, and evaluate the various proportions required for diamond cutting grade, such as table width ratio, pavilion depth ratio, pavilion angle, crown angle, etc., which will be accurately recorded. The computer will also calculate the estimated weight of the diamond according to the formula, and check it with the diamond weight in this link. However, all the data of the computer still need to be confirmed by the IGI appraisal experts, and the cutting proportion grade of the diamond will be finally given. Up to now, the appraisal experts have personally appraised each diamond in terms of symmetry and polishing degree, which can not be replaced by computers next, diamonds will undergo color evaluation. Each diamond will be compared with a set of internationally accepted standard colorimetric stones. There are strict standards for the size and clarity of the colorimetric stones. The clarity rating of diamonds is the focus of 4C rating. All diamonds will be tested with a 10x magnifying glass first after completing all the identification content, the diamond can be issued with an IGI certificate. The certificate records all the characteristics and information of the diamond, including whether it is a natural diamond, the precise weight, various data of cutting, the color clarity level, the clarity marking icon, whether there is fluorescence, the waist circumference or the lettering on the table top and other special information. The IGI certificate is handmade from cutting to the final set forming to ensure the beauty of every IGI certificate. After the certificate is made, the laboratory will conduct a final check, match the diamond with its certificate and information one by one, and finally input it into the computer for inquiry. Finally, the diamonds and certificates will return to the receiving department and wait for the sending party to retrieve them if some diamonds need to be sealed, the laboratory will seal their basic contents and certificate number together with the diamonds in a small plastic box, and paste a sealing paper on the back. Once this type of IGI sealing paper is opened, it cannot be restored. After the diamonds are sealed, until they reach the final owner, no one will open or replace them, no matter how many sales in this way, diamonds have completed their journey in the IGI laboratory and can be safely delivered to consumers.
Go to an authoritative appraisal institution for appraisal, and get other necessary parameters in addition to authenticity. Very soon, if there is equipment, the results can be produced in 20 minutes. If there is slow, the results will be given in three days even if there is no equipment, but only the place entrusted to take back the laboratory for testing. The appraisal fee depends on how many items are appraised. A small certificate costs tens of yuan, and a large certificate costs about 100 yuan
Check the authenticity of the appraisal certificate, check it online or by phone, and go to a jewelry appraisal institute for re inspection. The appraisal fee is less than 100 yuan. This appraisal is more authoritative
Send it to NGTC for testing. If you don't issue a certificate, it's free. Search NGTC on the Internet and you will find that it is a national testing institution founded by the Ministry of land and resources for more diamond information, welcome to zmy diamond
Mengkela "a diamond's IGI identification process"
when a diamond is sent to the identification laboratory, what kind of inspection and test will it undergo? What is the most rigorous and precise result that consumers can get
first of all, when a batch of diamonds to be inspected is sent to the IGI laboratory, the staff will record its sender, number, delivery date and items to be identified. Some diamonds only need to do a few items in 4C, while some diamonds need to do more tests in addition to regular items, such as eight arrows and eight hearts. This will be classified in the beginning
next, the staff of IGI will immediately weigh the diamonds one by one and take them to three decimal places (so as to avoid confusion of diamonds as much as possible), and then pack them separately and assign a unique number to each diamond.
this number will never be repeated and will accompany the diamonds throughout the laboratory. These measures are all aimed at ensuring the correspondence between diamonds and their certificates in the future
then diamonds will enter the real identification process. First, diamond-sure or diamond-view is used to identify whether the gemstone submitted for inspection is a real untreated natural diamond. This step is called the fifth C of diamonds, that is, its authenticity. Any diamond in question found at this stage will be sent to the special department of IGI, where complex instruments such as Raman spectrometer and liquid nitrogen test will be used to determine the type of this diamond, and further tests will be conducted for this type of diamond. If they are finally identified as natural diamonds, they will return to the identification process. If not, then the identification process will stop. Most diamonds have successfully passed the identification of the first pass. Then, it is arranged to send the diamonds to various departments of the IGI laboratory in order for other 3C evaluations. First, the computer will use software to scan all aspects of data, determine the shape and type of diamond cutting, and evaluate the various proportions required for diamond cutting grade, such as table width ratio, pavilion depth ratio, pavilion angle, crown angle, etc., which will be accurately recorded. The computer will also calculate the estimated weight of the diamond according to the formula, and check it with the diamond weight in this link. However, all the data of the computer still need to be confirmed by the IGI appraisal experts, and the cutting proportion grade of the diamond will be finally given. Up to now, the appraisal experts have personally appraised each diamond in terms of symmetry and polishing degree, which can not be replaced by computers
next, diamonds will undergo color evaluation. Each diamond will be compared with a set of internationally accepted standard colorimetric stones. There are strict standards for the size and clarity of the colorimetric stones. The clarity rating of diamonds is the focus of 4C rating. All diamonds will be tested with a 10x magnifying glass first
after completing all the identification content, the diamond can be issued with an IGI certificate. The certificate records all the characteristics and information of the diamond, including whether it is a natural diamond, the precise weight, various data of cutting, the color clarity level, the clarity marking icon, whether there is fluorescence, the waist circumference or the lettering on the table top and other special information. The IGI certificate is handmade from cutting to the final set forming to ensure the beauty of every IGI certificate. After the certificate is made, the laboratory will conduct a final check, match the diamond with its certificate and information one by one, and finally input it into the computer for inquiry. Finally, the diamonds and certificates will return to the receiving department and wait for the sending party to retrieve them
if some diamonds need to be sealed, the laboratory will seal their basic contents and certificate number together with the diamonds in a small plastic box, and paste a sealing paper on the back. Once this type of IGI sealing paper is opened, it cannot be restored. After the diamonds are sealed, until they reach the final owner, no one will open or replace them, no matter how many sales
in this way, diamonds have completed their journey in the IGI laboratory and can be safely delivered to consumers.
Go to an authoritative appraisal institution for appraisal, and get other necessary parameters in addition to authenticity. Very soon, if there is equipment, the results can be produced in 20 minutes. If there is slow, the results will be given in three days even if there is no equipment, but only the place entrusted to take back the laboratory for testing. The appraisal fee depends on how many items are appraised. A small certificate costs tens of yuan, and a large certificate costs about 100 yuan
Check the authenticity of the appraisal certificate, check it online or by phone, and go to a jewelry appraisal institute for re inspection. The appraisal fee is less than 100 yuan. This appraisal is more authoritative
Send it to NGTC for testing. If you don't issue a certificate, it's free. Search NGTC on the Internet and you will find that it is a national testing institution founded by the Ministry of land and resources
for more diamond information, welcome to zmy diamond
Take it to the appraisal center for appraisal, the best way.