How to distinguish the gold ring is gold? How much is the 18K gold ring?

First of all, look at the marks. According to the national regulations, all jewelry will be on the mark. The mark should be clearly visible. The mark of the ring is hit in the inner circle, which mainly indicates the material of the ring. The gold content. There are also some small brands who only put on gold content and materials, and do not hit the brand. For example, the mark of the ‘foot gold’ margin is made as a gold manufacturing of 99 % of the purity. For example, when you play AU750 or G750, G18K is made of 18K gold, and 750 represents the gold content of 75 % of the purity. If there is no mark or a rough workmanship, it may be a fake. Then look at the texture, the pure gold texture is soft, the finger ring of the ring can be squeezed and deformed, and the teeth are bite. This is also related to the thickness and width of the ring. The thickness of the thickness is naturally greater. Looking at the gloss again, you can see the true and false from the gloss. The real golden luster is natural, the color is slightly red, and the color will be charming and delicate in strong light. Fake goods are mostly electroplated products. The color is not naturally different from real gold, and it is very hard and difficult to deform. Based on the feel, the density of the real gold has a lot of fall, the fake goods are fluttering, and the fake goods are deliberately done. The purpose is to increase the weight to impersonate it. true and false. There is also a method of wrapping the real gold on the outside, which needs to cut the ring to debate from the cut surface. Finally, I will teach you a small test. As the saying goes, real gold is not afraid of flooding fire. If you do it, you can't help this level. Oxygen has a chemical reaction. Only rare precious metals have this characteristic, so put gold on fire and burn, and the liquefied gas at home can cool down. For example, the surface of the gold surface is deformed and black, and the color is not pure. Using the above methods at the same time in daily life can basically argue, especially for high temperature tests. However, there are also frauds mixed with a small amount of crickets in gold, and professionals need instruments to be verified. The above is the basic commonly used method, and other pure gold jewelry is the same as the above method. However, it should be noted that 18K cannot burn because the gold itself is impure. It is black and black. It is not a high -temperature test for pure gold jewelry. Otherwise, you will burn out. K gold is sold according to pieces, and does not press grams. It mainly uses craftsmanship and style as a selling point. The above is personal experience. One word and one word use the mobile phone for a long time. I am sad if I do n’t adopt it.

The latest gold (2011-02-12) reference price: 338 yuan/gram (24K); 270 yuan/gram (18K gold), so 15 grams of 18K men's corner chain should not be less than 3900 yuan.