I'm a little afraid of jewelry. Where can I buy it better?

How to distinguish genuine and fake jewelry
how to distinguish genuine and fake jewelry
1. Specific gravity test method:
there is a specific gravity liquid on the market to measure the specific gravity of gemstones; We can use a specific gravity of 3.32 to test real and fake diamonds. The specific gravity of natural diamonds is 3.52, and all natural diamonds will sink when placed in specific gravity water. Therefore, any gemstone floating in specific gravity water can be sure that it is not a diamond
2. Penetration observation method:
diamonds have high refractive index, and the higher the refractive index, the stronger the light reflection, and the lower the relative perspective. You can prepare a paper with a straight line drawn. The two unknown diamonds to be measured face down and are pressed on the straight line. If you can see the straight line under the diamond, it is definitely not a natural diamond
3. Lipophilicity method:
diamonds have an "oil absorption" to oils and fats, while counterfeit diamonds do not. Put a small amount of oil on the diamond's face and rub it with your thumb. Your thumb will feel sticky and not easy to slide, while fake diamonds will make your thumb feel slippery
4. Exhale test:
natural diamonds have good heat transfer ability and the hot gas dissipates quickly. Put the diamond to be tested close to your mouth and breathe gently to cover the diamond to be tested with a layer of mist. At this time, immediately watch the evaporation of the mist of the diamond. If it is a natural diamond, the mist will disperse immediately. Otherwise, the mist will remain on the counterfeit diamond for a while before it will disperse
5. Measurement and weight:
a natural diamond of 1 carat has a diameter of about 6.50 mm (0.65 cm). Under the same weight of 1 carat, the diameter of most counterfeit diamonds is quite different from that of natural diamonds

Introduction to the characteristics of jewelry:
beauty, that is, gorgeous, crystal clear and dazzling. If a gem is not beautiful, it can not be a gem. This beauty is manifested in gorgeous colors, transparent and clean, or has special optical effects (such as cat's eyes, color change, night light, etc.), or special patterns (such as chrysanthemum stone, agate, plum blossom jade, etc.). For example, for diamonds, those with less transparency and blemishes can be used to polish them into expensive diamonds, while those with poor transparency, more blemishes and black color can only be used as industrial raw materials
long, that is, the texture is hard and wear-resistant, and can last for a long time. Because of the high value of gems, people must expect them to be durable, value preserving and even hereditary. One of the reasons why diamonds become the most expensive gemstones is that they are the hardest gemstones in the world and are not afraid of corrosion. Therefore, most of the gemstones with higher value in the world are silicate minerals (such as jadeite) with high hardness and corrosion resistance, a few oxides (such as ruby and sapphire) and simple minerals (such as diamonds), while the soft and vulnerable gemstones (such as Xiuyu and Nanfang jade) are of low value and are often used to make handicrafts, Win by work; But there are also a few precious stones, such as Opal and pearl
thin, that is, low output. Rare things are precious. Grandmother emeralds, which are very rare in the world, are worth tens of thousands of dollars per carat (0.2g) of high quality. However, some pretty and durable gemstones (such as amethyst) have been cheaper because of their large production and easy mining. Some common rocks also have the characteristics of beauty and durability after being polished, but they can't be a member of the big family of gemstones. The reason is that things are cheap when they are easy to get
true and false identification and classification

It's better to buy jewelry in a large professional place, so the chance of buying a guy is less and it's more secure

In fact, the gemologist Lao Xu is right