People who buy diamond rings usually see some marking parameters on the label on the inside of the diamond ring. These signs are different in various brand stores, but some of them are the same. So, what does the letter mark on the diamond ring mean?

First of all, diamond rings are usually marked with these data: pt900, pt950 and pt990 are the marks of platinum, representing 90%, 95% and 99% of platinum content respectively.

Jewelry. In addition, some begin with d, followed by some numbers. D stands for diamond and is the first letter of the English word "diamond". For example, d050 refers to a diamond of 50 cents (0.5ct).

d 13 1

D0075 refers to the main stone 1.3 1 carat, and the auxiliary stone is 7.5 points (0.0075 carat). In addition to the above common symbols, diamond rings have some other symbols, some of which are company abbreviations, origin, manufacturers, brand labels and so on. Some of them are also marked with diamond cutting, clarity, color grade, etc.