Many people like to wear gold jewelry, and everyone has different needs for gold jewelry. Some people like young and fashionable styles, some people like classic atmosphere, and some people buy gold jewelry to preserve their value. And now many jewelry stores are mainly made of hard gold. We also know that the cost of hard gold is much more expensive than ordinary gold jewelry, and many people don't know whether they are buying hard gold or pure gold. Today, Zheng Xiao teaches you how to judge the difference between hard gold and ordinary pure gold jewelry from the appearance.

Zheng Xiao described what hard gold is and its characteristics: First, the purity of hard gold is the same as that of ordinary pure gold jewelry, and its hardness is four times that of ordinary gold, so it is called hard gold. Moreover, its biggest feature is its large volume and light weight.

If you can see from the appearance, first of all, hard gold is hollow, and its weight is generally one-third of that of ordinary pure gold jewelry of the same size. In other words, a full gold ring of about 6 grams can be made into the same size with only 2 grams of hard gold. Therefore, hard gold jewelry feels very light in your hand.

Secondly, because of the demand of technology, every piece of hard gold jewelry has obvious holes, some are larger and some are as big as pinholes. For example, there are pinhole-sized holes in rings and bracelets, and some pendants are on the back.

Related question and answer: Is pure gold pure gold? number

Thousands of pure gold is not pure gold, the gold content of pure gold is above 99%, and pure gold refers to 24K gold with a gold content of 100%. In theory, 100% gold can be called 24K gold, but in reality it is impossible to have 100% gold, so China stipulates that gold with a content of more than 99.6% (including 99.6%) can be called 24K gold.

Many people don't know pure gold, thousands of gold and thousands of gold. Generally, thousands of gold means 99.9% gold content, and thousands of gold means 99.99% gold content. Generally, thousands of gold is more expensive. It is impossible for gold ornaments to reach 99.99%, so this is only a promotion method for merchants, because the higher the purity of gold, the softer the texture and the easier it is to deform when worn.

Extended data:

There is no 24K gold in the world. Therefore, if there is gold marked "24K gold" or "pure gold" on the market, it is not true.

The content of pure gold in decorative gold is called "gold position", which is Karat in English, so it is called K gold. Generally speaking, pure gold is 24K, which means that the gold content is 100% in theory. Therefore,

The gold content of 22K is 91.6% (22/24 = 0.916).

The gold content of 20K is 83.3%(20/24=0.833).

The gold content of 18K is 75% (18/24=0.75).

The gold content of 14K is 58.3% (14/24=0.583).