Knowledge: What does 18K gold mean?

K represents the purity of gold, 18K refers to the pure gold content of 18/24, which is a kind of 75% gold plus 25% other metal alloys (such as silver, palladium, zinc, nickel, etc.). In theory, 100% gold can be called 24K gold, but in reality it is impossible to have 100 　　'K' representing the purity of gold. 18K refers to the pure gold content of 18/24, which is 75% gold plus A kind of 25% other metal alloys (such as silver, palladium, zinc, nickel, etc.).　　　　In theory, 100% gold can be called 24K gold, but in reality it is impossible to have 100% gold. Therefore, my country stipulates that only gold with a content of 99.6% or more (including 99.6%) can be called 24K gold.　　　　 These kinds of K gold content are the general specifications of jewelry, and the state stipulates that gold jewelry below 9K cannot be called gold jewelry. Some gold jewellery is marked with a text mark, and its stipulation is: pure gold-gold content is not less than 99%, thousand pure gold content is greater than 99.9% 　　　　 my country has regulations on gold product imprints and identification plates, and generally requires the manufacturer code and material name , Content imprints, etc., unqualified products without imprints. The same is true internationally. But for some very small products, it is also allowed not to mark. The 18K gold imprint is generally AU750, 18K or G750.　　　　18K gold jewelry not only has the precious value of gold, but also because of its perfect composition ratio, it has the advantages of strong ductility, high hardness, and changeable colors. When used in jewelry design, it can give full play to complex and exquisite creative expressions.　　　　Because it contains 25% of other metals, 18K gold can also be made into different colors, such as white, yellow, and rose red. They are called white 18K gold, 18K gold, and 18K rose gold. In the world of jewelry trends, K gold is the mainstream. Western fashionistas use unique and distinctive K gold jewelry to highlight their personal style; it is precisely because K gold fashion can always meet the needs of contemporary young people, so in fashion The status of the world has lasted for a long time, forming a popular trend of wearing K gold jewelry.　　　　 The '18K' white gold necklaces, rings, pendants, etc. currently on the market mostly refer to 18K gold, and some products contain less than 18K gold. The so-called white K gold is actually a white mixed metal composed of titanium, silver, nickel, rhodium, copper and other metals, not (platinum) platinum. Some merchants sell this product as '18K Platinum', which is an act of misleading consumption and deceiving consumers. The above is the author's summary for you about the meaning of 18k gold. The information comes from the Internet. If there is anything wrong, please understand. If you need jewelry processing, inlay, and customization, please visit the official website of jewelry inlay. Jewelry inlay will be happy to help you service!