5D hard gold is a relatively new gold product, which is widely used in jewelry making. Compared with traditional gold products, 5D hard gold is more stable in quality and more delicate in texture, so it is favored by consumers. But why is 5d hard gold also marked with 999? Is 5d hard gold pure gold? Let's take a look at friends who want to know.

1. Why is 5d hard gold also marked with 999?

The reason why 5d hard gold is marked with 999,

Because it is also pure gold.

The gold content can reach 99.9%. 5d hard gold is just different from ordinary gold in technology. 5d is made by cyanide-free electroforming process, which has hard core texture, lighter weight and more diverse styles. & gt& gt Which is more valuable, soft gold or hard gold?

Second, the difference between 3d hard gold and 5d hard gold

5d hard gold has been upgraded on the basis of 3d hard gold, and the main differences are as follows.

1, 3D hard gold

3D hard gold is a new product that breaks the traditional process and is mainly made by electroforming. It mainly improves the gold content, PH value, working temperature, organic brightener content and stirring speed in electroforming solution, which greatly improves the hardness and wear resistance of gold.

For jewelry with the same volume, the weight of 3D hard gold is about 1/3 of that of traditional pure gold, but its hardness is four times that of traditional pure gold. In addition, because of its high hardness, 3D gold is more stereoscopic than ordinary gold, and its technology will be more beautiful. & gt& gt3d hard gold or thousands of gold?

2, 5D hard gold

5D hard gold is essentially the same as 3D hard gold, except that the electroforming solution is upgraded, and the upgraded solution does not contain hydride, so it is also called environmental protection electroforming. Compared with 3D hard gold, 5D hard gold has higher hardness, lighter weight, more luster and is not easy to be deformed or damaged.

Is the answer to why 5d hard gold is also marked with 999 clear to everyone? Whether it is 3d hard gold, 5d hard gold or 5G hard gold, it is all gold in essence, but the process has been improved, which will not affect the purity. However, due to the increase of technological difficulty, the manual cost of these hard gold will be much higher than that of ordinary Huang Jingui. If you want to invest in value preservation, it is not very cost-effective to buy hard gold. It is recommended to choose traditional gold.