1 thought on “How to distinguish the authenticity of the gold necklace”
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Many people buy gold necklaces when they get married, so when buying a gold necklace, how to identify the authenticity of the gold necklace? Let's take a look together. On how to distinguish the authenticity of the gold necklace , the naked eye observation method The first step: find the official logo. In the sign, the purity of the gold (1-999 or 0.1-0.999) or the number of carats (10K, 14K, 18K, 22K or 24K). You can better observe with a magnifying glass. The signs on the long -term gold wares may wear out. There may also be tagged fake gold because further verification is required. Step 2: See if the golden device has faded. This is important to check whether the goldenware is easy to wear (especially the edge) is fading. If there is a fading phenomenon on the gold device and the fading part is revealed by the color of other metals, then your golden device may only be gold -plated. . The bite method Pengedly bite the gold ware properly. Is whether there are bite marks on the golden device. Theoretically, after the real gold is bitten, the bite marks will be left. The deeper the bite marks, the higher the purity of the golden gold. But we do not recommend this method because this may hurt the teeth. In addition, because lead is softer than gold, bite marks will be left on the gold -plated lead. . Magnetic attraction method In the magnet to suck the gold. Gold is not a magnetic metal, so if the magnet can attract gold wares, it is fake. However, it cannot be attracted by the magnet alone that it cannot prove that this golden device is true, because it may also be made from other non -magnetic metals. . Disted inspection method 1. Weight. If you have no balance yourself, you can ask you to say it on your jewelry, usually free. The weight must be accurate to gram. 2. Filled water in a small bottle. If there is a millimeter scale on the wall of the small bottle, it will help you to complete the test more conveniently. It doesn't matter how much water is. As long as the gold ware is put in, the water does not overflow, so don't pretend to be full. After putting in the golden device and after the gold ware, you must carefully record the water level height. 3. Put the gold ware in the bottle. Record the changes in the water level before and after, and then calculate the value of the water volume, which is accurate to milliliters. 4. Calculate density with the following formulas. Gold density = total weight/water increase in water. If the density is close to 19 grams/ml, it is real gold or metal with density close to gold. The following is an example of calculating density: The gold device focuses on 38 grams, and the volume of water increase is 2 ml. According to the density obtained by the formula, it is 19 grams/ml, this result is very close to the density of real gold. The golden density of different purity is also different 14K gold density is equivalent to 12.9-14.6 grams/ml yellow 18k gold density is equivalent to 15.2-15.9 grams/ml white 18K gold gold The density is equivalent to 14.7-16.9 grams/ml 22K gold density is equivalent to 17.7-17.8 grams/ml . If not, you can buy a piece of porcelain at home in the home improvement store. 2. Scrape porcelain plate with gold. If a black scratch is left on the porcelain plate, your gold ware is not real gold. If the scratch is golden, it is true gold. . The nitric acid test method 1. Put the goldware into a small stainless steel container. 2. Drop a drop of nitric acid on the golden device and observe the reaction. If the sour is green, then this golden device is either made of ordinary metals or gold -plated. If it presents golden color, it is gold -plated copper. Ifly, it is gold -plated silver. If there is no reaction, then this golden device is true. The gold necklace symbols The gold necklaces are welcomed by the public from ancient times to the present. The tough and precious gold necklace is pure and gorgeous, and it is an excellent carrier of long -lasting true feelings. Gold necklace is a must -have for women's fashion. Gold has been the symbolic color of the emperor since ancient times. Its dazzling light always attracts many women. Women wearing gold necklaces will set off a different temperament and elegance. Gold necklace cleaning method . The removal of dust n to clean the dust and dirt of gold jewelry. The easiest way is to wash it with soft brush dipped in hot water, and then gently wash it. It is best to scrub the tearned particles (such as toothpaste, polishing paste, fine sandpaper, or fine sand cloth, etc.) to prevent the weight of the gold from being reluctant, causing the weight of the gold loss. . The washing of the gold necklace Is when washing the pure gold necklace, first put the pure gold necklace in a human container, add water to the container, and then add a small amount of ammonia water. Shake it hard, then take it out and dry it. When wearing a golden necklace, it should also be maintained with a buckle switch, and regularly drops a sewing machine oil to the switch to prevent the miniature spring in the switch rust. . The removal of the white spots It due to the trace mercury (mercury) in the commercially available cosmetics, such as the freckle cream, there are often ingredients such as benzyl hydroxyl mercury and two mercury, and gold jewelry contact Then white spots or whiteness will appear. At this time, do not scrape or sandpaper with a small knife. As long as the white spots or white jewelry appear to bake in the fire, and then wipe it with a soft cloth, the gold jewelry will restore the original luster. . Wiping the appearance powder The surface of the gold jewelry is dirty, which will make the glory dim. At this time, you can use the flushing photos of the photo of the photo to flush it with the warm water from 30-40 ~ C, and dilute it with double the water. After soaking the dirt's gold jewelry for 4 to 6 minutes, use soft hair to use soft hair, then use soft hair. Brush into the dirt and rinse it with water several times. If you use fine woolen to dip the nail polish and rub it 0 times, the jewelry will be brighter. . Soaking and cleaning 1000 ml of warm boiling water (40 ~ C), add 200 ml of ice acetic acid to make a water solution, then put the gold jewelry into this cleaning solution for 10 minutes, and then use it to use it. Wipe the brush, and finally rinse it with water purification. Is when you hesitate to choose a wedding jewelry, just wear a classic pearl necklace. When buying a perfect pearl necklace as a wedding jewelry, first make the relevant reserves of pearl knowledge. Buying a high -quality pearl necklace is essential.
Many people buy gold necklaces when they get married, so when buying a gold necklace, how to identify the authenticity of the gold necklace? Let's take a look together.
On how to distinguish the authenticity of the gold necklace
, the naked eye observation method
The first step: find the official logo. In the sign, the purity of the gold (1-999 or 0.1-0.999) or the number of carats (10K, 14K, 18K, 22K or 24K). You can better observe with a magnifying glass. The signs on the long -term gold wares may wear out. There may also be tagged fake gold because further verification is required.
Step 2: See if the golden device has faded. This is important to check whether the goldenware is easy to wear (especially the edge) is fading. If there is a fading phenomenon on the gold device and the fading part is revealed by the color of other metals, then your golden device may only be gold -plated.
. The bite method
Pengedly bite the gold ware properly.
Is whether there are bite marks on the golden device. Theoretically, after the real gold is bitten, the bite marks will be left. The deeper the bite marks, the higher the purity of the golden gold.
But we do not recommend this method because this may hurt the teeth. In addition, because lead is softer than gold, bite marks will be left on the gold -plated lead.
. Magnetic attraction method
In the magnet to suck the gold. Gold is not a magnetic metal, so if the magnet can attract gold wares, it is fake. However, it cannot be attracted by the magnet alone that it cannot prove that this golden device is true, because it may also be made from other non -magnetic metals.
. Disted inspection method
1. Weight. If you have no balance yourself, you can ask you to say it on your jewelry, usually free. The weight must be accurate to gram.
2. Filled water in a small bottle. If there is a millimeter scale on the wall of the small bottle, it will help you to complete the test more conveniently. It doesn't matter how much water is. As long as the gold ware is put in, the water does not overflow, so don't pretend to be full. After putting in the golden device and after the gold ware, you must carefully record the water level height.
3. Put the gold ware in the bottle. Record the changes in the water level before and after, and then calculate the value of the water volume, which is accurate to milliliters.
4. Calculate density with the following formulas. Gold density = total weight/water increase in water. If the density is close to 19 grams/ml, it is real gold or metal with density close to gold. The following is an example of calculating density:
The gold device focuses on 38 grams, and the volume of water increase is 2 ml. According to the density obtained by the formula, it is 19 grams/ml, this result is very close to the density of real gold.
The golden density of different purity is also different
14K gold density is equivalent to 12.9-14.6 grams/ml
yellow 18k gold density is equivalent to 15.2-15.9 grams/ml
white 18K gold gold The density is equivalent to 14.7-16.9 grams/ml
22K gold density is equivalent to 17.7-17.8 grams/ml
. If not, you can buy a piece of porcelain at home in the home improvement store.
2. Scrape porcelain plate with gold. If a black scratch is left on the porcelain plate, your gold ware is not real gold. If the scratch is golden, it is true gold.
. The nitric acid test method
1. Put the goldware into a small stainless steel container.
2. Drop a drop of nitric acid on the golden device and observe the reaction.
If the sour is green, then this golden device is either made of ordinary metals or gold -plated.
If it presents golden color, it is gold -plated copper.
Ifly, it is gold -plated silver.
If there is no reaction, then this golden device is true.
The gold necklace symbols
The gold necklaces are welcomed by the public from ancient times to the present. The tough and precious gold necklace is pure and gorgeous, and it is an excellent carrier of long -lasting true feelings. Gold necklace is a must -have for women's fashion. Gold has been the symbolic color of the emperor since ancient times. Its dazzling light always attracts many women. Women wearing gold necklaces will set off a different temperament and elegance.
Gold necklace cleaning method
. The removal of dust n to clean the dust and dirt of gold jewelry. The easiest way is to wash it with soft brush dipped in hot water, and then gently wash it. It is best to scrub the tearned particles (such as toothpaste, polishing paste, fine sandpaper, or fine sand cloth, etc.) to prevent the weight of the gold from being reluctant, causing the weight of the gold loss.
. The washing of the gold necklace
Is when washing the pure gold necklace, first put the pure gold necklace in a human container, add water to the container, and then add a small amount of ammonia water. Shake it hard, then take it out and dry it. When wearing a golden necklace, it should also be maintained with a buckle switch, and regularly drops a sewing machine oil to the switch to prevent the miniature spring in the switch rust.
. The removal of the white spots
It due to the trace mercury (mercury) in the commercially available cosmetics, such as the freckle cream, there are often ingredients such as benzyl hydroxyl mercury and two mercury, and gold jewelry contact Then white spots or whiteness will appear. At this time, do not scrape or sandpaper with a small knife. As long as the white spots or white jewelry appear to bake in the fire, and then wipe it with a soft cloth, the gold jewelry will restore the original luster.
. Wiping the appearance powder
The surface of the gold jewelry is dirty, which will make the glory dim. At this time, you can use the flushing photos of the photo of the photo to flush it with the warm water from 30-40 ~ C, and dilute it with double the water. After soaking the dirt's gold jewelry for 4 to 6 minutes, use soft hair to use soft hair, then use soft hair. Brush into the dirt and rinse it with water several times. If you use fine woolen to dip the nail polish and rub it 0 times, the jewelry will be brighter.
. Soaking and cleaning
1000 ml of warm boiling water (40 ~ C), add 200 ml of ice acetic acid to make a water solution, then put the gold jewelry into this cleaning solution for 10 minutes, and then use it to use it. Wipe the brush, and finally rinse it with water purification.
Is when you hesitate to choose a wedding jewelry, just wear a classic pearl necklace. When buying a perfect pearl necklace as a wedding jewelry, first make the relevant reserves of pearl knowledge. Buying a high -quality pearl necklace is essential.