What do you need to bring to the jewelry center to test diamonds

1.

Diamond identification program:

1. GIA diamond identification center

GIA is the most authoritative diamond identification organization in the world, and is now the maker of diamond 4C standard. As a non-profit organization, GIA identification certificate is famous for its impartiality, recognized by people inside and outside the instry, and can be called the proof of diamond identity

generally, diamonds with more than 30 points in China are equipped with GIA diamond certificate, but because the appraisal cost of GIA diamond certificate is relatively high, the price of diamonds with GIA certificate is also higher than that of diamonds with GIA certificate

2. The identification center is observed with a microscope and will not damage the diamond. When you bought a diamond ring, you should have an appraisal certificate. Generally, there are diamond jewelry
don't worry, unless you require destructive testing (usually for quality report), otherwise, the identification center will not do any damage to your jewelry. Otherwise, if one is identified and the other is damaged, who is going to identify it
give me points.

3.

Jewelry identification can be carried out in Beijing's four national testing centers, namely Peking University, Dida, Guojian and Guoshou. These four testing centers are large in scale and high in level. It is better for consumers to consult with a professional large testing institution or a registered quality inspector recognized by the AQSIQ or issue a certificate with legal effect before purchasing

when purchasing, consumers should try their best to choose CMA (laboratory metrology certification), cal (quality inspection agency review and accreditation), cans (National Laboratory Accreditation) "three standards in one" certificate. In particular, we should pay attention to whether there is a cal mark, because the certification authority with this mark is approved by the national quality inspection department, which is relatively standardized

extended data:

is very similar to diamonds, and is the best substitute for diamonds. The identification method is that zircon has polarization and great birefringence. When the processed zircon edge is observed with a 10 times magnifying glass, from the top to the bottom, it can be seen that the edge line at the bottom has obvious double shadow, while diamond has no double shadow

the refractive index of glass is very low, and there is no twinkling color light like diamond; Especially when it sinks into the water, the glass procts have no brilliance and show their feet immediately. Although crystal is a natural mineral transparent crystal, after processing, it looks like a diamond, but it lacks the color light of diamond

4. Provident fund management center is a management organization, its special account is set up in the bank (mostly CCB), provident fund loans, provident fund withdrawal are entrusted by the center bank.

5. First to the provident fund management center for collection proceres, and then will designate a bank to collect money. To get the provident fund, you need a foreign account book or temporary residence card, resignation certificate and ID card

6. When you apply for a personal card, you go to the bank designated by the company.
you need to go to the provident fund center to open an account for the company, and then open a personal account. When you pay, you go to the bank

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8. You can go to Celia - change the secondary password - click cancel the secondary password and verify it in the way of binding the secondary password (my ID card) - OK