Everything you need to know regarding 18K Gold

18K gold

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, palladium, etc. 18K gold is a kind of gold jewelry with lower cost and more comfortable wearing.

K gold is calculated by dividing pure gold into 24 parts. 24k gold is pure gold, but in reality it is impossible to have 100% gold. Therefore, China stipulates that gold with a content of 99.6% and above can be called 24K gold.

The Chinese name is 18K gold and the foreign name is Au750, which is composed of an alloy with a gold content of at least 75%, which is characterized by lower cost and more comfortable wearing.

Paraphrase

Nowadays, marriage is inseparable from the diamond ring, and the couple usually look carefully for a period of time after buying the diamond ring, and feel that a small diamond ring is amazing. They will also see the words on jewelry, such as 18K, Au750, G750, Pt900... So what does 18K gold mean? Many people don't know it well. The details are as follows:

The open (K) of gold is the unit of gold content. The most common types of K gold are 24K, 18K, 14K, 8K, etc. In theory, 100% gold can be called 24K gold, but in reality, it is impossible to have 100% gold. Therefore, our country stipulates that the content should reach 99.6% or more. (Including 99.6%) of gold can be called 24K gold.

18K gold ornaments not only have 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, which are called white 18K gold, 18K gold, and 18K rose gold. K gold is the mainstream in the world's jewellery trends. 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.

Most of the "18K" white gold necklaces, rings, pendants, etc. on the market now refer to 18K gold, and some products do not contain 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. According to the national standard, the purity of gold is represented by "K". For example, 18K gold generally refers to gold jewelry with a gold content of 75%.

National standard

The national standard GB11887-89 stipulates that the gold content of each open (the abbreviation of English carat and German karat, often written as "k") is 4.166%, and the gold content of open gold is respectively (the national standard in parentheses):

8k=8*4.166%=33.328%(333‰)

9k=9*4.166%=37.494%(375‰)

10k=10*4.166%=41.660%(417‰)

12k=12*4.166%=49.992%(500‰)

14k=14*4.166%=58.324%(583‰)

18k=18*4.166%=74.998%(750‰)

20k=20*4.166%=83.320%(833‰) 18K white gold

500x500 34k jpg

21k=21*4.166%=87.486%(875‰)

22k=22*4.166%=91.652%(916‰)

24k=24*4.166%=99.984%(999‰)

24k gold is often considered pure gold and becomes "1000‰", but the actual gold content is 99.99%, which is 23.988k. 18K gold is gold with a purity greater than or equal to 75%.

Composition type editing Voice

The factory will combine 25% of precious metals according to the needs of the product, and determine the color of 18k gold according to the different content of precious metals in the 25%.

Domestic mainstream 18K gold

1. White 18K gold

2. Red 18K gold

3.Rose gold

4. Color 18K gold

18K white gold: 75%+25% silver, nickel+zinc combination (nickel shall not exceed 0.3%)

18K blue gold: 75% + iron (appropriate)

18K black gold: 75% + thick iron

18K purple gold: 75% + lead

18K yellow gold: 75% + nickel + silver + zinc

18K rose gold: 75%+copper+silver+zinc

18K white gold: 75%+silver+nickel+platinum+zinc or 75%+palladium, it is slightly bluish white