On the waist of the diamond (where the metal claw is stuck), you can find the code printed by laser with a magnifying glass. Everyone has an ID number, and the waist code of a diamond is also the ID number of a diamond in layman's terms. This is only available for diamonds tested by authoritative organizations. If there is a code, there must be a diamond grading certificate. The laser code is the same as the diamond code on the certificate.
You can't see the waist size of many diamonds clearly, but don't worry. You can look at them with a magnifying glass. There is a magnifying glass in the jewelry store, so you can take a closer look. The waist code of a diamond can also be said to be a kind of anti-counterfeiting code, so knowing what a waist code is will give you more protection when buying diamonds, so that you can observe the authenticity by yourself, which is of great help when buying diamonds.
Extended data:
The diamond waist code can be said to be the logo of a diamond, but not all gia diamonds have a diamond waist code. Because there are two kinds of GIA diamond grading certificates: one is a certificate issued by diamonds smaller than 1ct, which is called a small certificate. The other is that a certificate containing 1ct or more is called a big certificate, and these two certificates are different.
First, because the small certificate will be opened only when it is less than 1ct, there is no "clarity sketch" of the diamond on the certificate (sketch is a more realistic reflection of the internal situation of the diamond, including the shape and style of the package, which is equivalent to the photo of the diamond under the microscope and, in layman's terms, the human fingerprint). Basically all diamonds have waist codes to help customers identify diamonds, in which "GIA" is three letters.
Diamonds over one carat (including one carat) are big certificates. It has a sketch of diamond clarity. The function of this diagram is to describe in detail the shape, location and number of defects in this diamond. Therefore, there is no need to put a laser code on such a diamond.
What is the use of diamond waist size? Except for some gia-grade diamonds that have no waist size, other diamonds generally have waist size, so diamond lovers must pay attention to their waist size when buying diamonds, so as to prove the authenticity of the diamonds they buy and help themselves when choosing.
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