3 thoughts on “How to distinguish the authenticity of the gold ring”
Roland
. Pure gold is very soft, and you can move gently with your hands. 2. The color should be yellow red. If the yellow is white or purple, it is wrong. 3. Buy at a regular jewelry store, ask for an invoice, and see the words "Thousands of Gold" and "Football" on the jewelry. 4. What I said upstairs, burned with fire. The pure gold in the flame is getting brighter and brighter, and the dirty pure gold jewelry can also be cleaned like this, but don't burn it too long to melt it. Burning the muskets for welded jewelry, do not use the general match, candle, and alcohol lights, because the flame burning will leave black charcoal on the roast, like the bottom of the pot ... 5. Use the test gold stone. Examination, but first of all, there must be a pure gold reference. 6. Get a special inspection agency for testing and pay some money.
It look at color, pure gold jewelry, colorful color, color difference in color difference. Listening to the sound, the real gold fell from the high place on the hard ground, the sound was dull, no tail sound, the bouncing was not high, the fake sound was crisp and the bounce was high. Heavy, gold jewelry has a feeling of sinking in his hands, and fake is light. This bending, pure gold jewelry, soft wrinkles at the bend at the bend, and the fake ones are stiff. Touching hard, the pure gold jewelry bite the tooth print with the teeth, and there are scarcs with hard objects, but there is no fake one. The fire burned, the real gold was burned without color, and the fake ones turned black or white. The white K gold is actually a alloy, which is generally made of gold with other metals. Among them, the purity of gold is only 75%. It will fade. Platinum is a natural white gold. In terms of purity, rarity and durability, white K gold is not as good as platinum. The easiest way to distinguish between the two is: platinum jewelry is generally marked with "PT900", "PT950" and other logos, while white K gold cannot be used to play the "PT" logo.
In gold jewelry, pure gold jewelry texture is softer, the teeth are bite, and it is easy to bend. The color is golden, pure, soft, heavy, and 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 have a printing sign. 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 number, such as the K gold jewelry marked "18K". %. 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.
The types of jewelry that is easily confused with gold jewelry, some are gold -plated jewelry, some are gold jewelry, some are copper jewelry, and some are copper alloy jewelry. Let's explain all the brief explanations:
The gold -plated jewelry is plated on the surface of other metal jewelry on the surface of the electroplating method. Essence However, the gold -plated jewelry feels lightly, the texture is hard, the teeth are bitter, and it is easy to fade with a long time. Some gold -plated gold -plated jewelry, the color is either red or white, or flowers.
This gold jewelry refers to 24K or 22K gold foil on other metal surfaces, such as the KD number of K is too low, and its softness is poor. The appearance of the golden jewelry is similar to the real gold jewelry. The golden light is sparkling and it is not easy to fade, making it difficult to argue. However, if you carefully observe the depression, angle, back, etc. of the jewelry, you can find that the gold foil is uneven and there is a phenomenon of tilting edges. If there are broken joints on the jewelry, the cross section of the metal material can be seen from the outside. In addition, the feel of the gold jewelry is also lighter, the texture is harder than the pure gold jewelry, the teeth are bitter, and it is not easy to bend.
The copper jewelry color is yellow with red, fake, darker luster, soft texture, and light weight. Copper alloy jewelry (copper tin alloy), white color, hard and light quality, long -term coloring, will make the skin darker.
The gold -plated jewelry, gold jewelry, or copper jewelry, and Asian gold jewelry, generally do not have a gold jewelry -like printing. Or it is different from gold jewelry. If some jewelry is engraved with the English letters "GK", it means "gold plating". Or the signature traces are blurred and crooked. Consumers should identify whether there are printing, printing whether the printing is in compliance with the above provisions, and whether the printing is clear, etc. to determine the authenticity of gold jewelry. rnrn黄金首饰的鉴定方法很多，中国民间总结了一套简便方法，其口诀是：看色泽、掂重量、听音韵、折硬度、石上磨、对比牌、用酸点、 Fixed into color. The first four sentences depends on the eyes and the feeling; the latter four sentences need to be used by tools and reagents.
. Look at the color
The different luster and color of the gold can be generally distinguished from pure gold, K gold, real gold, fake gold. That is, gold is better with red yellow, and the color is more than 95 %; the positive yellow color is about 80 %; the blue and yellow color is about 70 %; the yellow color is slightly gray and the color is about 50 %. Therefore, there is a formula for "seven greens, eight yellow, nine five red, and yellow leucorrhea ash. For jewelry from Jiu Tibet, there will be a saying that "copper turns green, silver turns black, and gold will never change color".
. Look at the density
The density of gold is 19.32 grams / cubic centimeter, which is about double the same volume of silver, lead, and tin. Available formula: The mass (gram) of a certain gold jewelry (gram) is equal to density than the volume (cubic centimeter) of a certain gold jewelry (cubic centimeter). Seeking the density of the gold jewelry measured, the density is about 19.32 grams / cubic centimeter, it is pure gold or relatively pure gold, otherwise it is a non -pure gold or color difference gold (this method has no destructiveness to the jewelry).
. Folding hardness
Gold has the characteristics of ductility and small hardness, and can be pressed into thin pieces of 12.7 microns. When the color is high, marks can be left with large head needles or nails. More than 97 % of gold jewelry, after twisting two or three times, wrinkles appear at the bend, also called fish scales; about 95 % gold jewelry, feel hard when bending, the fish scales are not obvious; The jewelry is very hard when the bending is bent, without fish scales; gold jewelry containing more impurities, bend twice or three times to break; if it is made for raw gold, the bend is broken. When using this method, the width and thickness of the jewelry should be considered. The thick and width should be hardened, and the thin and narrow ones are softer.
. Listening to the rhyme, watching elasticity
When the high -quality gold jewelry is hit or throwing it hard, it emits a dull and low sound of "hits, clicks", and no sound rhyme, no elasticity, K gold There are sound rhymes, sound, elasticity, the greater the elasticity, the more the rhyme, the more old, the worse the color.
. Use the test gold stone to identify the color
The use of the gold -pairing card (the gold medal identified as a color) and the test jewelery on the test gold stone, through the contrast color, determine the gold jewelry color. This method should be carried out under natural light and sunlight, and cannot be carried out under the direct sunlight and incandescent lamps.
. Use the acid point
This on the testing stone to grind the identified jewelry and the golden road of the card, respectively, and test the nitric acid on the golden road with a glass stick. The color is unchanged. If it is not gold or non -pure gold, the Golden Road disappears or changes. The law of changes is "three fast, three slows", that is, the low color disappears quickly, and the high color disappears slowly; Depending on the disappearance of its golden road, compare cards can determine the color of gold jewelry.
The maintenance of gold jewelry
The gold jewelry is not very delicate, but if it is not carefully maintained, it will also lose its original gloss and charm. Generally speaking, beware of the following points:
1. The chemicals of cleaning can change the color of the gold, so you should take off the gold jewelry before doing cleaning.
2. Avoid contact with high volatile substances such as perfume and glue, otherwise it will easily cause gold decoration to fade.
3. When swimming, remove the golden decoration to avoid chemical changes in the surface layer after encountering seawater or pool water.
4. Put the velvet cloth and put it in the jewelry box when storage to avoid friction and damage to each other.
5. Gold is relatively soft and easy to deform, so do not pull the necklace and other accessories to avoid deformation.
6. Pure gold jewelry will have a chemical reaction when it encounters water and silver, and white spots appear. As long as you grill under the alcohol lamp for a while, you can restore the primary color.
7. After wearing, the gold ornaments often lose their luster due to the stains and dust contamination. At this time, as long as the gold decoration is placed in the neutral detergent soaked and washed with warm water, and then removed and wiped.
Gold jewelry
Gold jewelry refers to jewelry made of gold as the main raw material. The golden chemical symbol is AU, the gravity is 17.4, and the hardness of Mobi is 2.5. Gold jewelry can be divided into two categories: pure gold and K gold. The gold content of pure gold jewelry is more than 99%, up to 99.99%. Therefore, it is also known as "Nine Nine Gold", "Full Gold" and "Red Gold".
K gold jewelry is a jewelry made of other metals (such as silver and copper) to the gold material, also known as "opening gold" and "color gold". Due to the number of other metals, different K numbers of K gold jewelry are formed.
In gold jewelry, pure gold jewelry texture is softer, the teeth are bite, and it is easy to bend and the color is golden. Pure, soft, heavy feel, and 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 have seals, seals on gold jewelry, useful "gold", and "KG" English letters. The corresponding K number is marked. In addition, the jewelry also marks the seal of the origin of different manufacturers.
How to distinguish between authenticity and quality when purchasing jewelry. View the national standards of the mark. Premium metal jewelry should be produced by the place of production, manufacturers, materials and content, and unscayed products are unqualified products. If a quality problem, quality inspection agencies may be given inspection and judgment according to the mark. Consumers should purchase the brand they need and the gold jewelry of different gold content according to the mark. Second, sensory inspection method: 1. Look at color: Foot gold is dark yellow, K gold has yellow, red, white and other color, and most of the imitation gold products are copper alloys, and the color is lighter. 2. Oblique weight: The proportion of gold is 19.3g/cm3, which is much higher than the proportion of imitation gold products. For example, a foot gold ring is about 5 grams, and the same size imitation gold products are generally less than 3 grams. 3. Test hardness: Pure gold is soft, scratches with large head needles, bite tooth marks with teeth. Third, if you need to know the content of precious metal jewelry or quality disputes, you should go to the jewelry quality inspection institutions and use a physical or chemical analysis method for identification. When buying jewelry, you also need to carefully check whether the stones are inlaid, whether the welding is firm or broken, burrs, trachoma, etc. Maintenance of jewelry: When wearing and stored in gold jewelry, you should avoid contact with objects such as lead, mercury (mercury), etc., otherwise the surface of the jewelry will be discolored. Dry the jewelry during drying and bathing to prevent wear or bumps, let alone pull it hard to avoid deformation or broken. After wearing jewelry for a period of time, there may be dirt, dark color, soak with washing spirit, brushing gently with soft brush, rinse with water, and wear after drying.
Pay content for time limit to check for freenThe answer is whether the gold rings are perspective: distinguish the materials, see the color, look at the texture, look at the workmanship, test soft, and the certificate inquiry. Gold rings have a single material and a variety of materials. A single material is platinum and gold. A variety of materials are made of platinum, gold, and inlaid. First of all, what kind of material is needed, and then make the next judgment. The real gold ring is warm yellow, the color is harmonious, the surface is delicate, and the color is bright and bright. Excessive redness may be pseudo -gold. If the color is too shallow, it may be a mixed alloy such as silver and aluminum. The darker the color, the more valuable, and the dark yellow yellow is the purest. See if it is a gold ring, first distinguish the material: the gold ring has a single material and a variety of materials. A single material is platinum and gold. A variety of materials are made of platinum, gold, and inlaid. First of all, what kind of material is needed, and then make the next judgment.n1. Look at the color: The real gold ring is warm yellow, the color is harmonious, the surface is delicate, and the color is bright and bright. Excessive redness may be pseudo -gold. If the color is too shallow, it may be a mixed alloy such as silver and aluminum. The darker the color, the more valuable, and the dark yellow yellow is the purest. 2. Look at the texture: The quality of the gold ring is soft, easy to bend, and easy to pull. It is easy to leave traces with hard objects. Throwing "板" on the table, the fake floor sound is more sharp and higher than the real jump. It really does not change color when it comes to fire, and fake will become black -purple and bright. 3. Look at the workmanship: The surface of the gold ring is uniform, smooth and smooth, without defects, mottled, scars, sand particles and other defects. Welding and mouth should be smooth and thick. The pattern is clear and not heavy. The lines on both sides are neat, parallel, and toothless. The pattern combination design workmanship coordinated, the ring of the ring is smooth and smooth, without burrs. 4. Look at the mark: Domestic gold jewelry is made up and prepared according to international standards, and will be used on it. For example, 24K indicates foot red or foot gold, 18K gold, 18K words, and those who have less than 18K. The K -printed number cannot be played according to regulations. 5. Test soft and hard: the higher the color of the gold ring, the softer, and the more elastic. The real gold will have light marks with teeth or needle. Low -colored steel is hard; those with heavy mixes are elastic, crispy and easy to break. The pure gold is soft, and it is generally not used to make embedded jewelry. Therefore, all inlaid gold jewelry claims to be 24K and there must be fraud. 6. Certificate query: The gold jewelry purchased by regular merchants will have its own number. You can log in to NGTC for query. Genuine will have your own information. NGTC is a national jewelry and jade professional quality inspection institution authorized by the State Administration of Quality Supervision and Inspection and Quarantine in accordance with the law. This is the most direct way of identification.
. Pure gold is very soft, and you can move gently with your hands.
2. The color should be yellow red. If the yellow is white or purple, it is wrong.
3. Buy at a regular jewelry store, ask for an invoice, and see the words "Thousands of Gold" and "Football" on the jewelry.
4. What I said upstairs, burned with fire. The pure gold in the flame is getting brighter and brighter, and the dirty pure gold jewelry can also be cleaned like this, but don't burn it too long to melt it. Burning the muskets for welded jewelry, do not use the general match, candle, and alcohol lights, because the flame burning will leave black charcoal on the roast, like the bottom of the pot ...
5. Use the test gold stone. Examination, but first of all, there must be a pure gold reference.
6. Get a special inspection agency for testing and pay some money.
It look at color, pure gold jewelry, colorful color, color difference in color difference. Listening to the sound, the real gold fell from the high place on the hard ground, the sound was dull, no tail sound, the bouncing was not high, the fake sound was crisp and the bounce was high. Heavy, gold jewelry has a feeling of sinking in his hands, and fake is light.
This bending, pure gold jewelry, soft wrinkles at the bend at the bend, and the fake ones are stiff. Touching hard, the pure gold jewelry bite the tooth print with the teeth, and there are scarcs with hard objects, but there is no fake one. The fire burned, the real gold was burned without color, and the fake ones turned black or white.
The white K gold is actually a alloy, which is generally made of gold with other metals. Among them, the purity of gold is only 75%. It will fade. Platinum is a natural white gold.
In terms of purity, rarity and durability, white K gold is not as good as platinum. The easiest way to distinguish between the two is: platinum jewelry is generally marked with "PT900", "PT950" and other logos, while white K gold cannot be used to play the "PT" logo.
In gold jewelry, pure gold jewelry texture is softer, the teeth are bite, and it is easy to bend. The color is golden, pure, soft, heavy, and 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 have a printing sign. 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 number, such as the K gold jewelry marked "18K". %. 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.
The types of jewelry that is easily confused with gold jewelry, some are gold -plated jewelry, some are gold jewelry, some are copper jewelry, and some are copper alloy jewelry. Let's explain all the brief explanations:
The gold -plated jewelry is plated on the surface of other metal jewelry on the surface of the electroplating method. Essence However, the gold -plated jewelry feels lightly, the texture is hard, the teeth are bitter, and it is easy to fade with a long time. Some gold -plated gold -plated jewelry, the color is either red or white, or flowers.
This gold jewelry refers to 24K or 22K gold foil on other metal surfaces, such as the KD number of K is too low, and its softness is poor. The appearance of the golden jewelry is similar to the real gold jewelry. The golden light is sparkling and it is not easy to fade, making it difficult to argue. However, if you carefully observe the depression, angle, back, etc. of the jewelry, you can find that the gold foil is uneven and there is a phenomenon of tilting edges. If there are broken joints on the jewelry, the cross section of the metal material can be seen from the outside. In addition, the feel of the gold jewelry is also lighter, the texture is harder than the pure gold jewelry, the teeth are bitter, and it is not easy to bend.
The copper jewelry color is yellow with red, fake, darker luster, soft texture, and light weight. Copper alloy jewelry (copper tin alloy), white color, hard and light quality, long -term coloring, will make the skin darker.
The gold -plated jewelry, gold jewelry, or copper jewelry, and Asian gold jewelry, generally do not have a gold jewelry -like printing. Or it is different from gold jewelry. If some jewelry is engraved with the English letters "GK", it means "gold plating". Or the signature traces are blurred and crooked. Consumers should identify whether there are printing, printing whether the printing is in compliance with the above provisions, and whether the printing is clear, etc. to determine the authenticity of gold jewelry. rnrn黄金首饰的鉴定方法很多，中国民间总结了一套简便方法，其口诀是：看色泽、掂重量、听音韵、折硬度、石上磨、对比牌、用酸点、 Fixed into color. The first four sentences depends on the eyes and the feeling; the latter four sentences need to be used by tools and reagents.
. Look at the color
The different luster and color of the gold can be generally distinguished from pure gold, K gold, real gold, fake gold. That is, gold is better with red yellow, and the color is more than 95 %; the positive yellow color is about 80 %; the blue and yellow color is about 70 %; the yellow color is slightly gray and the color is about 50 %. Therefore, there is a formula for "seven greens, eight yellow, nine five red, and yellow leucorrhea ash. For jewelry from Jiu Tibet, there will be a saying that "copper turns green, silver turns black, and gold will never change color".
. Look at the density
The density of gold is 19.32 grams / cubic centimeter, which is about double the same volume of silver, lead, and tin. Available formula: The mass (gram) of a certain gold jewelry (gram) is equal to density than the volume (cubic centimeter) of a certain gold jewelry (cubic centimeter). Seeking the density of the gold jewelry measured, the density is about 19.32 grams / cubic centimeter, it is pure gold or relatively pure gold, otherwise it is a non -pure gold or color difference gold (this method has no destructiveness to the jewelry).
. Folding hardness
Gold has the characteristics of ductility and small hardness, and can be pressed into thin pieces of 12.7 microns. When the color is high, marks can be left with large head needles or nails. More than 97 % of gold jewelry, after twisting two or three times, wrinkles appear at the bend, also called fish scales; about 95 % gold jewelry, feel hard when bending, the fish scales are not obvious; The jewelry is very hard when the bending is bent, without fish scales; gold jewelry containing more impurities, bend twice or three times to break; if it is made for raw gold, the bend is broken. When using this method, the width and thickness of the jewelry should be considered. The thick and width should be hardened, and the thin and narrow ones are softer.
. Listening to the rhyme, watching elasticity
When the high -quality gold jewelry is hit or throwing it hard, it emits a dull and low sound of "hits, clicks", and no sound rhyme, no elasticity, K gold There are sound rhymes, sound, elasticity, the greater the elasticity, the more the rhyme, the more old, the worse the color.
. Use the test gold stone to identify the color
The use of the gold -pairing card (the gold medal identified as a color) and the test jewelery on the test gold stone, through the contrast color, determine the gold jewelry color. This method should be carried out under natural light and sunlight, and cannot be carried out under the direct sunlight and incandescent lamps.
. Use the acid point
This on the testing stone to grind the identified jewelry and the golden road of the card, respectively, and test the nitric acid on the golden road with a glass stick. The color is unchanged. If it is not gold or non -pure gold, the Golden Road disappears or changes. The law of changes is "three fast, three slows", that is, the low color disappears quickly, and the high color disappears slowly; Depending on the disappearance of its golden road, compare cards can determine the color of gold jewelry.
The maintenance of gold jewelry
The gold jewelry is not very delicate, but if it is not carefully maintained, it will also lose its original gloss and charm. Generally speaking, beware of the following points:
1. The chemicals of cleaning can change the color of the gold, so you should take off the gold jewelry before doing cleaning.
2. Avoid contact with high volatile substances such as perfume and glue, otherwise it will easily cause gold decoration to fade.
3. When swimming, remove the golden decoration to avoid chemical changes in the surface layer after encountering seawater or pool water.
4. Put the velvet cloth and put it in the jewelry box when storage to avoid friction and damage to each other.
5. Gold is relatively soft and easy to deform, so do not pull the necklace and other accessories to avoid deformation.
6. Pure gold jewelry will have a chemical reaction when it encounters water and silver, and white spots appear. As long as you grill under the alcohol lamp for a while, you can restore the primary color.
7. After wearing, the gold ornaments often lose their luster due to the stains and dust contamination. At this time, as long as the gold decoration is placed in the neutral detergent soaked and washed with warm water, and then removed and wiped.
Gold jewelry
Gold jewelry refers to jewelry made of gold as the main raw material. The golden chemical symbol is AU, the gravity is 17.4, and the hardness of Mobi is 2.5. Gold jewelry can be divided into two categories: pure gold and K gold. The gold content of pure gold jewelry is more than 99%, up to 99.99%. Therefore, it is also known as "Nine Nine Gold", "Full Gold" and "Red Gold".
K gold jewelry is a jewelry made of other metals (such as silver and copper) to the gold material, also known as "opening gold" and "color gold". Due to the number of other metals, different K numbers of K gold jewelry are formed.
In gold jewelry, pure gold jewelry texture is softer, the teeth are bite, and it is easy to bend and the color is golden. Pure, soft, heavy feel, and 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 have seals, seals on gold jewelry, useful "gold", and "KG" English letters. The corresponding K number is marked. In addition, the jewelry also marks the seal of the origin of different manufacturers.
How to distinguish between authenticity and quality when purchasing jewelry. View the national standards of the mark. Premium metal jewelry should be produced by the place of production, manufacturers, materials and content, and unscayed products are unqualified products. If a quality problem, quality inspection agencies may be given inspection and judgment according to the mark. Consumers should purchase the brand they need and the gold jewelry of different gold content according to the mark. Second, sensory inspection method: 1. Look at color: Foot gold is dark yellow, K gold has yellow, red, white and other color, and most of the imitation gold products are copper alloys, and the color is lighter. 2. Oblique weight: The proportion of gold is 19.3g/cm3, which is much higher than the proportion of imitation gold products. For example, a foot gold ring is about 5 grams, and the same size imitation gold products are generally less than 3 grams. 3. Test hardness: Pure gold is soft, scratches with large head needles, bite tooth marks with teeth. Third, if you need to know the content of precious metal jewelry or quality disputes, you should go to the jewelry quality inspection institutions and use a physical or chemical analysis method for identification. When buying jewelry, you also need to carefully check whether the stones are inlaid, whether the welding is firm or broken, burrs, trachoma, etc. Maintenance of jewelry: When wearing and stored in gold jewelry, you should avoid contact with objects such as lead, mercury (mercury), etc., otherwise the surface of the jewelry will be discolored. Dry the jewelry during drying and bathing to prevent wear or bumps, let alone pull it hard to avoid deformation or broken. After wearing jewelry for a period of time, there may be dirt, dark color, soak with washing spirit, brushing gently with soft brush, rinse with water, and wear after drying.
Pay content for time limit to check for freenThe answer is whether the gold rings are perspective: distinguish the materials, see the color, look at the texture, look at the workmanship, test soft, and the certificate inquiry. Gold rings have a single material and a variety of materials. A single material is platinum and gold. A variety of materials are made of platinum, gold, and inlaid. First of all, what kind of material is needed, and then make the next judgment. The real gold ring is warm yellow, the color is harmonious, the surface is delicate, and the color is bright and bright. Excessive redness may be pseudo -gold. If the color is too shallow, it may be a mixed alloy such as silver and aluminum. The darker the color, the more valuable, and the dark yellow yellow is the purest. See if it is a gold ring, first distinguish the material: the gold ring has a single material and a variety of materials. A single material is platinum and gold. A variety of materials are made of platinum, gold, and inlaid. First of all, what kind of material is needed, and then make the next judgment.n1. Look at the color: The real gold ring is warm yellow, the color is harmonious, the surface is delicate, and the color is bright and bright. Excessive redness may be pseudo -gold. If the color is too shallow, it may be a mixed alloy such as silver and aluminum. The darker the color, the more valuable, and the dark yellow yellow is the purest. 2. Look at the texture: The quality of the gold ring is soft, easy to bend, and easy to pull. It is easy to leave traces with hard objects. Throwing "板" on the table, the fake floor sound is more sharp and higher than the real jump. It really does not change color when it comes to fire, and fake will become black -purple and bright. 3. Look at the workmanship: The surface of the gold ring is uniform, smooth and smooth, without defects, mottled, scars, sand particles and other defects. Welding and mouth should be smooth and thick. The pattern is clear and not heavy. The lines on both sides are neat, parallel, and toothless. The pattern combination design workmanship coordinated, the ring of the ring is smooth and smooth, without burrs. 4. Look at the mark: Domestic gold jewelry is made up and prepared according to international standards, and will be used on it. For example, 24K indicates foot red or foot gold, 18K gold, 18K words, and those who have less than 18K. The K -printed number cannot be played according to regulations. 5. Test soft and hard: the higher the color of the gold ring, the softer, and the more elastic. The real gold will have light marks with teeth or needle. Low -colored steel is hard; those with heavy mixes are elastic, crispy and easy to break. The pure gold is soft, and it is generally not used to make embedded jewelry. Therefore, all inlaid gold jewelry claims to be 24K and there must be fraud. 6. Certificate query: The gold jewelry purchased by regular merchants will have its own number. You can log in to NGTC for query. Genuine will have your own information. NGTC is a national jewelry and jade professional quality inspection institution authorized by the State Administration of Quality Supervision and Inspection and Quarantine in accordance with the law. This is the most direct way of identification.