How to identify and choose gold jewelry, and how to distinguish the authenticity when buying gold je

The first is to burn with fire, and the second is that ** jewelry has a word mark on it, if it is marked with 'thousand pure gold', it is true. If nothing else is guaranteed.

**Jewelry will not be picked, but you will be fooled. The most important thing to worry about is its "fineness", that is, the amount of gold in the gold jewellery. According to national regulations, all ** jewelry must be marked with the corresponding material of the steel seal, the steel seal to see the appearance of the letters au, g or pure gold means that it is, au is the chemical symbol of **, g is the abbreviation of ** English gold.

When we see AU999, G999, pure gold 999 means that the gold content is not less than **, that is, we usually call real gold, there were marks such as "thousand pure gold, ten thousand pure gold", which refers to gold jewelry with gold content not less than or. However, our country has canceled the naming of thousands of pure gold and ten thousand pure gold. Like investment collections you can choose them.

Clause. First, we must choose a larger brand when we buy **, the big brand may be a little more expensive, but the corresponding protection will be better.

First of all, big brands don't dare to do fakes, such as gold-clad silver, gold-clad copper, and gold-plated, because big brands, it can do it, it will definitely be controlled, and once there is a fake, it will face high fines and compensation, and no one wants to do loss-making business.

Then the after-sales of the big brand is very good, and the later maintenance and repair are more guaranteed, at least he doesn't dare to deny it!

Clause. Second, when buying, you must check the steel seal, many people don't know what the steel seal is, the steel seal is like the gold content of the ID card, if there is no unqualified **, even if you are pure gold, it is not allowed to be sold on the counter.

Some 22k, 18k gold content is lower, they and 24k is not visible to the naked eye, when we buy jewelry, if you only look at the ** do not look at the steel seal many people will buy low gold content, because the same style and size of the lower gold content is much cheaper.

Third, the purchase of ** must check the bill, to see if the after-sales service on the bill is the same as the shopping guide, if it is not the same as the scene to ask them to remarks, in fact, our after-sales service is also a large part of our purchase of ** focus on maintenance, there are remarks, ten ** nine will be changed, after all, it is jewelry for a long time I don't like it and ** high purity is very soft, pull will be bought ** to buy affordably, then the choice of style is also very important. **The style of jewelry can be divided into two types, one is a hollow or hollow style, and the other is a solid style.

And solid jewelry, every gram is a real can't buy a loss, for people who are not particularly wealthy, such jewelry is the most suitable. As the saying goes, no business is not treacherous, so as consumers, we should pay more attention to the use of some small methods when buying ** jewelry, so as not to be accidentally pitted.

**Jewelry is not cheap, so when choosing to buy, we should pay more attention to its cost performance, good-looking but not affordable** jewelry is a pit, to try to avoid.

For young women, they may pay more attention to the style of ** jewelry, choose more good-looking, and full of design, but they must not ignore the same value of **.

You can distinguish the authenticity of ** by looking at the color, weighing and other methods.

1. Look at the color.

According to the different luster and color of **, pure gold, K gold, real gold, and fake gold can be roughly distinguished. That is, gold is preferably reddish-yellow, and the fineness is more than 95%; The color of positive yellow is about 80%; The blue-yellow color is about 70%; Yellow with a hint of gray at about 50%. Therefore, there is a mantra of "seven green, eight yellow, nine five red, yellow and white with gray and half gold".

For jewelry that has been hidden for a long time, there is a saying that "copper turns green, silver turns black, and gold never changes color".

2. Weigh the weight.

The specific gravity of ** is heavier than silver, copper, lead, zinc, aluminum and other metals. Like the volume of ** heavier than ** more than 40%, heavier than copper, heavier than aluminum. **Jewelry should have a sense of sinking in the hand, and fake gold jewelry feels light.

This method does not apply to ** jewelry inlaid with gemstones.

** Kinds

1. Pure gold is one of the types of pure gold, pure gold refers to the gold content of more than 99%, this kind of gold can be dark yellow, the texture is very soft and noisy, and the jewelry made of pure gold has the functions of **, Shengqing collection, storage value, etc.

2. K gold is a variety divided according to the gold content, and K gold is divided into 1K 24K, the gold content of 1K is about, the more common K gold on the market is 18K gold, 20K gold, 22K gold, etc., this kind of K gold is often used to make exquisite jewelry.

3. Hard gold is one of the varieties divided by process, which needs to be treated by electroplating process, and the hard gold produced has the advantages of high hardness, wear resistance, and not easy to deform compared with ordinary gold.

1. Look at the color.

According to the different luster and color of **, pure gold, K gold, real gold, and fake gold can be roughly distinguished. The old jargon handed down from the pawnshop, "seven green, eight yellow, nine five red, yellow and white with gray and half gold" is to describe the purity of **, the color is green and white, the purity is not high, and the color is red and yellow, and the purity is high.

2. Look at the mark.

Domestic ** jewelry is marked with a kill mark in accordance with the regulations, marked with 24k means that the purity is above, and 18k is marked with a purity of more than 75%.

3. Look at the hardness.

** with high color, scratching with a pin or fingernail can leave marks. More than 97% of the ** jewelry, after bending two or three times, wrinkles appear at the bend, also known as fish scale patterns; About 95% of the ** jewelry in color feels hard when bent, and the fish scale pattern is not obvious; About 90% of the color of ** jewelry, when bent is very hard, there is no fish scale pattern; ** jewelry with more impurities will be broken after bending two or three times; If it is made of raw gold, it is broken when bent, and the section has obvious sand grains.

4. Listen to sounds.

When real gold with a fineness of more than 99% is thrown on hard ground, it will make a horn sound, with no rhyme and no elasticity. Fake or low-color** sound is brittle and no dullness, generally makes a "dangdang" sound, and the sound has an aftersound, and beats violently after landing.

5. Weigh the weight.

**The specific gravity is that the fineness has a greater relationship with the specific gravity, and when the specific gravity is close, the higher the pure gold content. The weight of the weight is proportionate to the size of the volume, and the shape is large and light, which may be adulterated. But generally in the hand, if there is a slight sense of heaviness, it can be perceived as real gold jewelry, which shows that the ** body is small and heavy.

Be vigilant against bulky and light jewelry, and carefully distinguish whether it is a fake or a semi-counterfeit.

6. Test soft and hard.

The higher the fineness of gold jewelry, the softer and more inelastic, and the real gold will have light marks when biting with teeth or needles, and there will be no broken lines when folded by hand. The one with low color is hard; The remixer is elastic, brittle and easy to break. Pure gold is softer and generally not used to make inlaid jewelry, so where inlaid gold jewelry claims to be 24k, there must be fraud.

7. Scraping porcelain plate method.

Find an unglazed porcelain plate, and if you don't have one, you can go to a home improvement store and buy a random piece of porcelain. If you scrape the porcelain plate with gold, if there are black scratches on the porcelain plate, your gold is not real gold, if the scratches are gold, it is real gold.

This method will expose the fake gold to its original form, but your gold may be scratched as a result.

8. Nitric acid test method.

Put the gold in a small stainless steel container, drop a drop of nitric acid on the gold and observe the reaction. If the acid drop is green, then the piece of gold is either made of plain metal or gold-plated. If it is golden, then it is gold-plated copper.

If it is milk-colored, it is gold-plated silver. If nothing happens, then the gold object is real.

Nitric acid test is a good way to distinguish the authenticity, but because nitric acid is not easy to obtain, and it is more dangerous to operate at home, it is recommended that you leave it to a jeweler.

How to distinguish **:

First, you can look at the color of **. **The higher the purity of the jewelry, the darker the color. In the absence of a gold medal, the general fineness can be determined according to the following colors (based on lapis and gold.

The so-called lapis gold is**contains only **ingredients). The color of dark red yellow is more than 95%, light red yellow is 90-95%, light yellow is 80-85%, blue yellow is 65-70%, color blue with white light is only 50-60%, and light yellow and white is less than 50%. The commonly said seven green, eight yellow, and nine red can be used as a reference.

Second, burn the jewelry and observe its color change after cooling. If it is pure gold, the surface will still be golden yellow after burning. If the color is black, it is not pure gold. However, when burning, pay attention to observation and do not burn the jewelry.

Third, listen to the sound. Dropping solid gold jewelry on the ground will make a clicking sound. The fake or bad ** will make a dangdang sound when it falls to the ground, and it will beat after landing.

Fourth, bite gently with your teeth. In ** jewelry, pure gold jewelry has a soft texture, teeth bite, easy to bend, golden color, pure, soft. Gold-plated jewelry feels lighter, has a harder texture, has no marks on the teeth, and is easy to fade after a long time.

Some gold-plated jewelry with poor electroplating is either red or whitish in color, or flowery.

Storage: Keep it dry, keep the storage location dry When choosing the best jewelry location, in addition to considering safety, there is also the location of the storage environment. **Jewelry is such a valuable item, it is best to find a clean and dry place to store, so as not to pollute the surface of the jewelry and affect the luster of the jewelry.

In addition, a humid environment can easily cause stains that are difficult to remove on the surface of your jewelry.

Centralized storage, **jewelry can not be scattered storage**jewelry, but also need to pay attention to not too scattered storage, although you can't put all the accessories together, but also can't be too scattered, because people's memory is limited, if you are scattered in different places, it is easy to forget after a long time.

Real gold is not afraid of fire, and the simplest thing is to burn it with fire.

011. Floating test.

Prepare a tall glass, fill it with water, and you're ready to start testing. Throw the metal into it, and the solid gold jewelry will quickly sink to the bottom. Imitation gold and other metals may float above the bottom or even completely above the water.

In addition, real gold does not rust or discolor when wet.

022. Magnet test.

The easiest test is to use magnets, real gold can never attract magnets. The magnet is easy to carry, you can feel free to carry it in your pocket, and it is easy to test. There are quite a few imitation gold and other alloys that attract magnets.

So, just get close to them with a magnet and see if they will be attracted by the magnet to tell if it's real or fake.

033, ** test.

We can even test it with **. People who have worn fake jewelry may have encountered cases where it causes discoloration, but you can also try to test its authenticity directly. Just hold the metal in your hand for a few minutes, and it's best to do so in hot weather.

Wait for your ** to sweat, and after the sweat reacts to it, observe the same changes. If it is fake, it may be discolored and may be black or green. And the real ones don't make a difference.

044. Vinegar test.

The white vinegar that is very common at home can also be used to detect the authenticity of **, but it is best to operate it with a dropper. You can start by inhaling some white vinegar with a dropper and dripping it on the **. Or place the metal on a flat surface with paper towels and a few drops of white vinegar on top of the **.

If you notice that it has changed color, it is fake. Usually, it will not change color because of this.

055. Acid test.

If you have liquid nitric acid in your home, you can also try it for testing. And it works for most ***. At the time of testing, use a dropper to drop a drop on top of the metal to see if there is a reaction on it, and the fake gold will immediately turn green where the acid appears.

The ** on sterling silver will turn milky white. Gold does not react with nitric acid, and the result is only a drop of clear liquid that does not change color.

066. Ceramic test.

Prepare a ceramic plate that has not yet been glazed, and then put the metal on it to apply a little pressure to see if gold will appear on the ceramic, some cases are true, if black appears, it is fake.