urban custom jewelry wholesale What does Jiafu engraved on the diamond ring mean Jiafu AU750 D0.040ct?

wholesale personalized jewelry pouches AU750 pretty tray tag, 18K, 18K refers to the purity of gold in jewelry in jewelry of jewelry is 18K. 18K is not a weight, but a proportion. Theoretically, 100%gold content is 24K. In fact, it is impossible to have 100%purity gold. Our country stipulates that the gold with a purity above 99.6%(inclusive) is 24K. 18K is the golden ratio of 18, 18/24 = 0.75, which is 750 thousandths. Therefore, the mark of 18K gold is AU750, 18K or G750.
0.040ct, diamond weight mark, one carat is equal to 100 points. That is 0.2 grams. This diamond is 4 points. According to the data you provided, this diamond ring value is more than 1,000 yuan.