Gold is one of the most valuable things in the world. In the eyes of the public, gold may be the most expensive.

In fact, platinum is more expensive than Huang Jingui, and precious stones are more expensive than white gold. Diamonds, the king of gems, become the best.

For thousands of years, owning gold has become a symbol of wealth in people's minds. As far as a country is concerned, today, the amount of gold reserves is a sign of whether a country is rich or not, and it is an important means for a country to stabilize prices, develop its economy and foreign trade.

Throughout the ages, gold and silver jewelry has always been the plaything of the rich and the game of the nobility. I haven't heard that any poor man can wear gold and silver. All the people who can wear gold and silver are sons and grandsons, young ladies and rich women.

As people's lives become more and more affluent, investing in gold, silver and jewelry has become the choice of many people.

For investors, if they want to invest in financial gold, they must first have a comprehensive understanding of the knowledge about gold.

(A) the embodiment of value

The reason why gold is priceless and becomes a treasure on earth is mainly determined by the following three points:

1. Rare. Things are rare, and things are rare. Imagine if there were as much gold as stones everywhere, would it still be precious?

2. High use value. Gold has stable performance, acid and alkali corrosion resistance and excellent ductility. 1 gram of gold can be drawn into a gold thread 10 meter long, which is really thinner than hair. These characteristics of gold determine that it plays an indispensable role in some cutting-edge industries.

3. Strong decoration. Gold is naturally beautiful and dazzling, but it still shines after thousands of years, and it does not change color or fade, making it an excellent ornament.

(2) Measurement of gold

Gold is divided into raw gold and cooked gold.

Raw gold, also known as natural gold, refers to the undried and smelted gold extracted from river bottom or ore, which is divided into ore gold and placer gold. Gold after melting and refining is divided into pure gold, red gold and colored gold. Color gold is gold with insufficient composition, which can be divided into clear gold and mixed gold. Pure gold contains only silver, and mixed gold also contains other metals such as copper, lead and silver.

The purity of gold is internationally recognized as "K"; China uses "gram", which is internationally recognized as "ounce".

1." K "

The purity of gold is commonly known as "purity" It is expressed as a ratio of one thousandth and also as a percentage. It is recognized that it is represented by "K".

What is "K"? Pure gold is divided into 24 parts, that is, 24K, accounting for 1 part, which is called1k. Generally, it is divided into 24K, 22K, 18K, 14K and 12K according to the color quality. The purity of 24K gold is 99.99%, but 100% pure gold is not.

2. "ounces"

The internationally accepted unit of measurement for gold is "troy ounce", or "ounce" for short. The equivalent relationship between ounces, grams and the market is as follows:

1 oz =3 1. 103477 g =0.62207 oz.