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wholesale faux pearl jewelry Differential method
1. Fake 18K gold proportion is far lower than real gold, and it is obviously lacking a sense of weight with hand; The luster is not bright, the connection is large, and the golden skin that seems to be seen in a closer look at it. There are traces of retreating color when the old goods are visible. There are steel prints G18K, 18K or AU750, G750, and labels are 18K gold; fake 18K gold steel prints are 18kgp or 18kgf, etc. The labels are called alloy or 18K casting gold. n4. From the point of view of the purchase, the real 18K gold is real gold, which must be sold by the gold sales unit approved by the People's Bank of China;
5. Look at the after -sales service, the fake 18K gold cannot be repaired. Throw it away; and the real 18K gold can be repaired and polished. If you accidentally break it, you can repair it. Other styles can be processed, and you can even sell it as a gold.
Extension information:
The differences
1, 18K gold and platinum
18k platinum, white K gold (essentially gold chemical expression as AU), platinum is usually us usually we usually The two types of platinum (platinum chemical expression are PT) are completely different substances.
(If the merchant explains that "18K platinum is platinum", it is the behavior of fraud. It can be reported to the Industrial and Commercial Bureau, Quality Supervision Bureau and other complaints.)
Comments in the file
2, K gold color is divided into
(1) white K gold.
(2) Yellow K gold.
(3) Double -color K gold (two -colored K gold jewelry on the jewelry)
(4) Color K gold (K gold jewelry with 3 colors on the jewelry)
( 5) Plated K gold.
The metal components of the two are completely different. Platinum is an element, and white 18K gold is a mixture containing gold (AU) and other amounts of other metals. On the chemical element table, white K gold is GOLD, platinum (platinum) is Platinum.
Reference information Source: Baidu Encyclopedia-18K gold
wholesale jewelry in utah If you want to distinguish 18K gold, this naked eye is difficult to distinguish. You need to distinguish it from the product label steel printing. Zhen 18K gold products are engraved with steel prints G18K, 18K or 750, and tag names are 18K gold; fake 18K gold steel prints are 18kgp or 18kgf, etc. The label is called alloy or 18K casting; It is to get a regular gold shop to test the other party with professional instruments. The 18K golden fire does not necessarily turn black, which depends on what metal other alloys are.
The gold of our country: 99.6%(inclusive) is 24K. 18K is the golden ratio of 18, 18/24 = 0.75, which is 750 thousandths. Therefore, the mark of 18K gold is AU750, 18K or G750.
18K's precious metals are gold, of which 25%are other metals, and can be metals such as copper, aluminum, silver, cobalt, tadpoles, iron, cadmium, nickel.
If a piece of 18K jewelry is made of gold and copper melting, then the copper burns inside will generate copper oxide and turn black.
Extended information:
In gold jewelry, pure gold jewelry texture is soft, with a bite of the teeth and easy to bend. The color is golden, pure, soft, heavy, and has a heavy feeling. K -gold's head jewelry texture is slightly harder, the teeth bite the use of mintes, the color is yellow in yellow, and the number of K is reduced, the white increases, and the yellow is shallow. The feel of K gold jewelry is not as heavy as pure gold jewelry.
In addition, both pure gold and K gold jewelry are printed. Printing on gold jewelry is used "gold" and "KG" English letters represent the texture.
When indicating the gold content, the word "99" or "24K" indicates that it is pure gold jewelry. The K gold jewelry is marked with the corresponding K numbers according to the different gold content. Its gold content is 75%.
In addition, the jewelry also marks the printing of the origin of different manufacturers. Really gold jewelry, printing standards, completeness, and clear, is an important identification of judgment.
Reference materials Source: Baidu Encyclopedia -18K Gold
cheap wholesale jewelry no minimum Yes! Because the purity of 18K is 75%, the remaining 25%is a compound of silver and copper. Burning with fire will destroy the gloss of the jewelry. It can also be distinguished by complaints. The higher the purity, the soft the jewelry. The harder it is! This method can only distinguish whether the jewelry is K gold, and there is no way to detect the precise purity of the jewelry!
wholesale jewelry thailand sterling silver Does the fire burning the sample?
If the damage that is ignored, you can use this method to burn red before cooling the real gold. The result of 750 is the result of silver/ copper metal measurement. The result should be half black. Sample
wholesale jewelry costume fashion 18K gold is generally synthesized by 75%of gold and other metals such as silver, copper, platinum. Among them, in addition to the more stable nature of the golden chemistry, other like silver and copper encountering acid -alkali substances will play a chemical effect, and the human sweat Some dirts formed daily are highly acidic, so it is easy to oxidize the 18K gold surface and expose amber.