How are gold K levels divided?

18k = 18*, 24k = 24 * 24k 99% gold, 22k contains, 18k contains, 14k contains, 12k contains 50%. At present, the ** jewelry sold on the market, divided into pure gold and K gold jewelry, according to the provisions of the national standard GB11887, the common ** jewelry content is: 24K - the current market is occasionally marked with 24K ** jewelry, according to the national standard, the theoretical value of 24K gold content should be 100%, gold without barefoot, so strictly speaking, 24K does not exist, and the sales marked with 24K gold is incorrect, not in line with the national standard.

Thousand pure gold - the content is, commonly known as three 9s. Pure gold - the content is, the above, commonly known as the two contents, there are many colors of K gold, usually yellow, red, white. Among them, white K gold is actually an alloy of nickel, zinc, copper and other elements.

It is not what is commonly referred to as white gold jewelry. White gold refers to *** platinum (pt) how to distinguish authenticity and quality when buying jewelry. <>

Theoretically, 24k is 100% pure gold. Roughly 1k = in turn, 18k gold is 75% gold, and the remaining 25% are other components, such as silver, copper, zinc or something. Due to the different proportions of the remaining components, the color of the alloy will be different.

However, in actual production, it is not 100% pure gold, and it will be mixed with impurities. At first, the national standard stipulated that the gold content above was called pure gold, and the above was called 1,000 pure gold. Then the witty merchants began to sell gold in the name of thousands of pure gold, ten thousand pure gold.

That is, the gold content990%。Naturally, the price is different.

As for whether it can be done or not, of course it can be done. But you know that what is sold to you is this high purity, in fact, if there is a welded gold product, then the weld must be insufficient gold content, if it is sent for inspection, a grasp of a quasi-later in order to regulate the market and other reasons, the national standard stipulates that all the above gold is called pure gold. There shall be no non-standard names such as thousands of pure gold.

24k gold is used as a theoretical name for pure gold. As you can see, for gold, the national standard is listed 9k, 14k, 18k, and 22k. The reason is probably because these levels are relatively common.

In fact, the most common ones on the market are 18k and 14k. As for the origin of k-gold, there is a version that it has something to do with carats. One is karat and the other is carat.

Originally, they were all carats, but later they were changed to karat in order to distinguish them. The level of Super QQ is called "**Grade", which is divided into 6 levels ("**1 level" to "**6 level"). After you activate Super QQ, Super QQ will be automatically upgraded as the usage time increases.

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CTF is the English abbreviation of Chow Tai Fook Chow Tai Fook, and pure gold is the color mark. Now many small brands still hang the logo of a thousand pure gold, which is not right. According to the relevant regulations of the state, where there are solder joints on the jewelry, its fineness can not be a thousand pure gold!

Chow Tai Fook, as the No. 1 jewelry brand in China, must have responded to the call of the country for the first time and changed the logo to pure gold, but its raw materials are all made of 4 9s! CTF is the first letter of Chow Tai Fook in English pinyin, that is, the abbreviation of Chow Tai Fook, all Chow Tai Fook things will be there. Distinguish between karat gold and pure gold mainly compared to hardness and elasticity.

The hardness of K gold is harder than pure gold, the purer and softer the pure gold, and you can bite out marks with your teeth, while K gold is not. The K gold ring falls on the ground and has a strong ** nature, while the pure gold ring falls on the ground and does not have this effect. <>

is a unit of content of **, and each k is about.

Generally there are and 10k

The first two are more commonly used in China.

Platinum: Platinum (PT), chemically more stable than **, and more expensive than **, is used to make high-end jewelry. The words "PT900" or "PT950" on the products in the jewelry store indicate that the platinum content in the jewelry is 90 and 95 respectively.

The general purity of pure platinum jewelry is 95, and platinum jewelry containing more than 990 platinum is generally marked with a "full platinum" mark. The "P950" mark means platinum in 950 fineness. White K gold should be marked with the KK number.

K refers to the ** content, for example, marked with 18K white, 750g, 750 gold, AU750 words are all white K gold with ** content of 18K. The purity of platinum jewelry is not indicated by a "k". None of the white gold and white gold jewellery sold in the market are platinum jewellery.

When buying platinum jewelry, you should ask the operator to issue an invoice, write clearly on the invoice whether it is platinum or white 18k gold, and it is best to indicate the weight of the jewelry, so that it is easier to claim in case of fraud.

**, the general concept is divided into pure gold, pure gold, respectively become 24k gold and 22k gold. There are 2 types in the white gold market, one is K white gold and the other is platinum. K platinum is divided into 18K, 14K, 10K, 9K, and 4K.

1000 pure gold 316 grams**Pure gold above the purity of pure gold grams**Purity above 1000 pure gold barsGold bars292 grams**Platinum above purity 488 yuan grams, updated at 10:00.

**Divided into several grades: the gold content of each opening gold is respectively (the national standard in parentheses):

8k=8*9k=9*

10k=10*

12k=12*

14k=14*

18k=18*

20k=20*

21k=21*

22k=22*

24k=24*

24k gold is often considered pure gold and becomes"1000‰", but the actual gold content is, discounted. (Non-standard marking methods such as "9999 gold", "pure gold", and "24k" gold, which do not actually exist, have been banned internationally).

1K gold is an alloy, which is an alloy that is melted with other alloys, and is a common raw material for making jewelry.

People add a small amount of silver, copper, zinc and other metals to increase the strength and toughness of the gold, so that the gold jewelry, also known as K gold, K gold can be prepared into various colors as needed, the internationally popular K gold jewelry has a variety of colors, we commonly have yellow and white. **Mixed with 25% palladium or nickel, it will become white, and the main ingredient that composes it is still **, which is called white gold.

Precautions for the maintenance of 1k gold.

The chemicals of the detergent will change the color, so you should take off the jewelry before doing housework or cleaning work, and you will inevitably use some lotion soap and other detergents when taking a bath, so try not to wear it in the bath, so as not to affect its luster.

Pay attention to avoid contact with items containing acids, alkalis and other chemicals in life, as well as too cold and too hot, which will erode the surface of K gold. Try to avoid contact with highly volatile substances such as perfume and hairspray to maintain K golden color. You can wear it again after spraying.

**There is a big difference between gold and gold in terms of purity and ductility.

Purity: The purity of ** is about that; The purity of K gold is about 75%, and the remaining 25% is other metals. From the point of view of purity, ** is too soft to do fine styling.

Ductility: The ductility of ** is relatively poor, so the style will be very simple. **The jewelry made is relatively traditional; The ductility of K gold is better, in the process of processing, other metals are added, so the ductility will be relatively high, the style of K gold is rich, and more detailed, and the appearance of the production is also novel.

**Jewelry selection precautions:

1. Weight: Generally speaking, the larger the number of grams, the greater the weight of the jewelry, if you buy the jewelry to get the light fluttering in your hand, it can only be said that the gold content of this jewelry is relatively low, and it is a shoddy inferior product. In this case, choose the next one.

2. Look at the color: **The pure color of the jewelry is golden yellow, yellowing and whitish are not real**, when we buy** jewelry, we should pay attention to the observation in the hand, if the color is pure, the surface is free of impurities, it is the real ** jewelry.