The "k" of K-Gold is the abbreviation of the foreign word "Karat". The complete expression is as follows: open gold (that is, k gold), and the measurement method of 1K gold is: pure gold is 24K (that is, 100% gold content), and the gold content of 1K is about 4. 166. The method of calculating gold content with "K" comes from a carob tree along the Mediterranean coast. The carob tree has red flowers and pods about 15 cm long. Bean kernels are brown and can be used to make glue. No matter where this tree grows, the size of the bean kernel is exactly the same, so ancient people used it as a standard to measure their weight. Over time, it has become a unit of weight to measure precious and subtle items. At that time, diamonds and gold were also measured in this unit, which is "carat". It was not until 19 14 that "open" was defined as the current standard internationally.

Classification of k gold

According to international standards, there are 24 kinds of K gold, namely 1K to 24K. At present, the jewelry materials used in all countries in the world are not less than 8K. In this way, in fact, the type of K gold for jewelry is 17.

Among 17 kinds of K gold materials, 18K and 14K are the most widely used, and they are the main jewelry raw materials in jewelry industry in various countries. In order to enrich the expressive force of various kinds of K-gold abroad, K-gold with different colors was synthesized by adjusting the matching coefficient of other alloys without changing the content standard.

At present, there are 450 kinds of gold ratios, of which 20 are the most commonly used. For example, there are 6 kinds in 14K: red, red yellow, dark yellow, light yellow, dark yellow and green yellow; There are five kinds of 18K: red, reddish, yellow, light yellow and dark yellow.

Colored K-gold: Generally, there are yellow K-gold, white K-gold and red K-gold.

Colored K gold jewelry is mostly colored 18K gold. 18K gold, except 750‰ gold, different proportions of other components will make k gold appear different colors, such as gold (silver and copper in the formula), red gold (more than 2/3 or all of the impurities in 250‰ are copper) and platinum (adding silver in the formula).

Gold is evaluated according to the trend of international gold price, which means that the price of gold depends on the international gold price. .

Shopping mall gold price = = = = = international gold price+handicrafts+shopping mall daily consumption.

Old temple. Montblanc Fengxiang Gold Building. Zhou Dasheng Zhou Shengsheng Chow Tai Fook. Several famous jewelers in China.