18k gold is an alloy with a gold content of at least 75%, that is, an alloy with a gold content of 18/24, and the remaining 25% is other precious metals, including platinum, nickel, silver and palladium. 18K gold is a kind of gold ornament with low cost and comfortable wearing.

The calculation method of K gold is to divide pure gold into 24 parts, and 24k gold is pure gold, but in reality, it is impossible to have 100% gold, so China stipulates that gold with a content of more than 99.6% can be called 24K gold.

Extended data:

18k gold identification method:

The ratio of 1 and fake 18K gold is much lower than that of real gold, and it obviously lacks a sense of weight when touched by hand.

2. To the naked eye, the fake 18K gold process structure is slightly rough, with dim luster and large deduction. If you look closely, you can see the gold skin that seems to have fallen off, and the second-hand goods can see the traces of fading. The real 18K gold craft is exquisite and shiny.

3. Look at the steel seal of the commodity label. Authentic 18K gold products are engraved with steel seals of G 18K, 18K or Au750 and G750, and the label name is 18K gold; The fake 18K gold seal is 18KGP or 18KGF, etc. , the label name is alloy or 18K cast gold, etc. Some of these ornaments are only plated with 18K gold;

4. From the place of purchase, the real 18K gold is real gold and must be sold by a gold sales unit approved by the People's Bank of China;

5. Look at the after-sales service. The fake 18K Kgold cannot be repaired and welded. Once it fades and breaks, it can be thrown away. Real 18K gold can be repaired, cleaned and polished. If it breaks down by accident, it can also be repaired. It can be processed into other styles and even sold as gold.

Baidu encyclopedia _ 18K gold