What's the difference between K gold, gold and platinum?

K gold refers to the alloy of gold and other metal elements. To be exact, the K unit is the unit of gold measurement that divides the gold content by 24 equal parts. In other words, as long as it is marked with K, whether it is yellow or white, it refers to gold content; The highest K gold is 24K gold, which is pure gold. In addition, the gold content in 18K, 14K, 9K and 18K gold is 18/24 = 75%, which means that the gold content is 75%, and 14K is 14/. Other K gold contents can also be calculated accordingly. Therefore, when buying jewelry, as long as the logo shows "18K" and "14K", it means gold, not platinum; In addition, people's traditional consciousness always thinks that K gold is 18K gold, which is wrong. K gold means that besides the word "K", we should pay attention to the number of gold before the word "K", such as 18K, 14K, 9K, etc. Some illegal hawkers often pass off 9K gold (with a gold content of 37.5%) as 18K gold. When it was sold, it was only collectively referred to as "K gold" and did not indicate the gold content.

Besides 24K gold, other K gold also contains other metal elements, such as silver (Ag), copper (Cu), nickel (Ni), palladium (Pd) and so on. Different kinds and contents of elements will lead to different colors of K gold, such as yellow, white and rose. Among them, platinum is generally called 18K gold.

The word "platinum" was originally used to mean platinum, because platinum attracts people's attention with its dazzling white color. However, when people prepare K gold, adding some whitening elements such as nickel or palladium will turn the original gold into white, and platinum (such as 18K platinum) will appear in the market. The word "platinum" is no longer a "patent" of platinum, and the market was once chaotic. Some unscrupulous merchants also take advantage of the traditional concept that platinum is platinum, and call 18K platinum "platinum".

How to distinguish K gold from platinum? In fact, it is very simple, mainly to pay attention to the logo on jewelry products:

No matter what color gold products are, the words "Au", "G" and "K" will be displayed, as well as the content identification in units of thousands or one percent. Generally speaking, the common signs are:

Thousands of points: au 990au 999g90g999g750, etc.