3D hard gold mainly refers to the craft of a certain kind of gold jewelry. In terms of gold content, 3D hard gold jewelry, like thousands of gold, has a gold content of 99.9%. Among the gold ornaments, we generally call the gold ornaments with a gold content of 99.9% 999 gold. However, the salesgirl seldom explains to customers that 3D hard gold refers to the process, but directly introduces 3D hard gold ornaments to customers, which leads customers to think that 3D hard gold ornaments are gold ornaments with low gold content, which is wrong.

Secondly, the sales method of 3D hard gold jewelry is different from that of ordinary 999 gold. Generally, gold shops will sell 999 gold jewelry by weight, but 3D hard gold jewelry will only be sold at a price. In fact, the profit of selling gold ornaments by weight in gold shops is very low, so new techniques will be developed to increase the added value of this gold ornament, so the profit will be higher.