White gold cannot be marked with Pt mark, only gold and its purity can be marked according to its purity. For example, 18K platinum can only be stamped with "18K" and "G750". In the international precious metal market, the price of platinum far exceeds that of gold, which is the highest among all precious metals. In addition, some white jewelry may be made of silver or coated with white metal, which may show its original appearance after a long time. Although platinum is sometimes commonly known as platinum, it should be called "platinum" in a strict sense. Platinum means platinum in English. Therefore, the purity, rarity, durability and natural white luster of platinum are incomparable to platinum.
Therefore, in fact, some jewelry marked "platinum" on the market is not platinum jewelry, so it is very important to look at the imprint on jewelry when choosing.
Platinum and silver are similar in color, and inexperienced people are easily confused.
There are five ways to distinguish platinum from silver, as follows:
Comparative method. Platinum is grayish white to the naked eye, with a hard texture and a hardness of 4.3. With naked eyes, the color of silver is white, the texture is fine and smooth, the hardness is lower than that of platinum, and the hardness is 2.7.
Identification seal. Because every piece of jewelry must be engraved with a component seal, as long as it is Pt, platinum or Plat, it is platinum; If you see S or silver, it's silver. Also note that the symbol for copper and silver plating is SF.
Weigh. This method can be used if the seal is blurred or has been cut off. The density of platinum is very high, the specific gravity is 2 1.4kg/m3, and the specific gravity of silver is 10.49kg/m3. In this way, the weight of the same volume of silver is only half that of platinum, so it is easy to distinguish the two.
Cremation identification. Sometimes the material is less, the weight on the hand is not obvious, and there is no seal at the same time, so this method has to be adopted. After platinum is heated or burned and cooled, its color remains unchanged; When silver is heated or burned and cooled, its color becomes moist red or black red.
Chemical methods. Grind platinum on the touchstone and drop a few drops of mixed solution of nitric acid and hydrochloric acid. If there are grinding marks, it means platinum. As for the fineness, there are only some differences in color. If you drop it on silver, the wear marks will disappear.
Question 2: What's the difference between platinum, gold and platinum? Why is it so expensive? When we buy a wedding diamond ring, the merchant will mainly introduce us to three kinds of mop materials, namely gold, platinum and platinum, but many people are not sure about the difference between platinum and platinum. Here is a detailed explanation of the distinction between platinum and platinum.
The difference between platinum and platinum
The difference between platinum and platinum 1: composition
Their metal compositions are completely different. Platinum is an element, and platinum is a mixture containing gold (Au) and a small amount of other metals. On the list of chemical elements, platinum is gold and platinum is platinum.
Platinum (Pt) is chemically more stable than gold and its price is higher than that of Huang Jingui, so it is used to make high-grade jewelry. The "Pt900" or "Pt950" seen on jewelry products represent that the platinum content in jewelry is 90% and 95% respectively.
The second difference between platinum and platinum: purity
Platinum (Pt) is chemically more stable than gold and its price is higher than that of Huang Jingui, so it is used to make high-grade jewelry. The purity of platinum jewelry is generally 95%, while the purity of 18k gold is only 75%. No metal can be completely pure, and there are impurities mixed with other metals. Platinum has almost no impurities, and its purity is extremely high. It will not fade and change color, and it can still maintain its luster over time. The pure white luster of platinum can well reflect the true light of diamonds.
Platinum is a mixture containing gold (Au) and a small amount of other metals. The highest purity of platinum visible in the market is 75%. It is made of 75% gold and 25% silver, nickel, copper and other metals, that is, white gold. Marked as 18K platinum, 750 platinum, 750G, etc.
The third difference between platinum and platinum: rarity
Platinum is 35 times rarer than gold. In the world, it can only be mined in a few places, mainly South Africa and Russia, as well as a few areas in Zimbabwe, Canada and South America. Only 88 tons of platinum is made into ornaments every year, while 2700 tons of gold. The quantity of platinum ore is less, and the ratio of platinum ore to gold ore is 1 to 10.
The fourth difference between platinum and platinum: durability
The density and weight of platinum make it more durable than other jewelry metals. All precious metals leave scratches, including platinum. However, the scratches on platinum only move the metal and will not reduce its volume, while the scratches on gold will bring wear and reduce the volume of gold. If visible scratches appear on platinum, qualified jewelers can polish it again.
How to distinguish platinum from platinum?
1, thousands of gold refers to pure gold ornaments with a metal content of 99.9% and engraved with the words 999 or thousands of gold.
2. Pure gold refers to pure gold ornaments with a gold content of 99%, engraved with 99% or pure gold.
3. 18K gold refers to ornaments containing 75% gold, and the remaining 25% are other precious metals engraved with 18K or 750.
4. 18K platinum refers to platinum ornaments containing 75% gold, and the remaining 25% is other white and yellow metals, engraved with the mark 18K or 750.
5.Pt900 refers to a platinum ornament, 90% of which is platinum, the rest 10% is other precious metals, and 950% is platinum and palladium, bearing the imprint of Pt900.
6.Pt950 refers to ornaments containing 95% platinum and the remaining 5% other precious metals, bearing the imprint of Pt950.
Roman etiquette tips:
The difference between platinum and platinum mainly depends on the imprint on jewelry, in which the ring will be marked on the inner ring and the necklace will be marked on the buckle. Platinum jewelry containing more than 990‰ platinum is generally marked with "sufficient platinum". The symbol "P950" indicates platinum with a purity of 950‰.
Platinum should be marked with KK number. K refers to the gold content. For example, those marked with 18K white, 750G, 750k gold and Au750 are all platinum with a gold content of 18K. The purity of platinum jewelry is not expressed by "K". White gold and platinum jewelry sold in the market are not platinum jewelry.
When buying wedding jewelry, please ask the operator to issue an invoice, which should clearly indicate whether it is platinum or white 18K gold. It is best to indicate the weight of the jewelry, so it is easier to claim compensation in case of fraud. ...& gt& gt
Question 3: What's the difference between platinum and gold? Which is better? When we buy a wedding diamond ring, the merchant will mainly introduce us to three kinds of mop materials, namely gold, platinum and platinum, but many people don't know the difference between platinum and platinum. Let's explain in detail how to distinguish platinum from platinum. The difference between platinum and platinum is 1: The metal composition of platinum and platinum is completely different. Platinum is an element, and platinum is a mixture containing gold (Au) and a small amount of other metals. On the list of chemical elements, platinum is gold and platinum is platinum. Platinum (Pt) is chemically more stable than gold and its price is higher than that of Huang Jingui, so it is used to make high-grade jewelry. The "Pt900" or "Pt950" seen on jewelry products represent that the platinum content in jewelry is 90% and 95% respectively. The second difference between platinum and platinum is that pure platinum (Pt) is more stable than gold and its price is higher than that of Huang Jingui, so it is used to make high-grade jewelry. The purity of platinum jewelry is generally 95%, while the purity of 18k gold is only 75%. No metal can be completely pure, and there are impurities mixed with other metals. Platinum has almost no impurities, and its purity is extremely high. It will not fade and change color, and it can still maintain its luster over time. The pure white luster of platinum can well reflect the true light of diamonds. Platinum is a mixture containing gold (Au) and a small amount of other metals. The highest purity of platinum visible in the market is 75%. It is made of 75% gold and 25% silver, nickel, copper and other metals, that is, white gold. Marked as 18K platinum, 750 platinum, 750G, etc. The third difference between platinum and platinum: the rarity of platinum is 35 times that of gold. In the world, it can only be mined in a few places, mainly South Africa and Russia, as well as a few areas in Zimbabwe, Canada and South America. Only 88 tons of platinum is made into ornaments every year, while 2700 tons of gold. The quantity of platinum ore is less, and the ratio of platinum ore to gold ore is 1 to 10. The fourth difference between platinum and platinum: durability The density and weight of platinum make it more durable than other jewelry metals. All precious metals leave scratches, including platinum. However, the scratches on platinum only move the metal and will not reduce its volume, while the scratches on gold will bring wear and reduce the volume of gold. If visible scratches appear on platinum, qualified jewelers can polish it again. How to distinguish platinum from platinum? 1, thousands of gold refers to pure gold ornaments with a metal content of 99.9% and engraved with the words 999 or thousands of gold. 2. Pure gold refers to pure gold ornaments with a gold content of 99%, engraved with 99% or pure gold. 3. 18K gold refers to ornaments containing 75% gold, and the remaining 25% are other precious metals engraved with 18K or 750. 4. 18K platinum refers to platinum ornaments containing 75% gold, and the remaining 25% is other white and yellow metals, engraved with the mark 18K or 750. 5.Pt900 refers to a platinum ornament, 90% of which is platinum, the rest 10% is other precious metals, and 950% is platinum and palladium, bearing the imprint of Pt900. 6.Pt950 refers to ornaments containing 95% platinum and the remaining 5% other precious metals, bearing the imprint of Pt950. Roman etiquette tips: the difference between platinum and platinum mainly depends on the imprint on jewelry, in which the ring will be marked on the inner ring and the necklace will be marked on the buckle. Platinum jewelry containing more than 990‰ platinum is generally marked with "sufficient platinum". The symbol "P950" indicates platinum with a purity of 950‰. Platinum should be marked with KK number. K refers to the gold content. For example, those marked with 18K white, 750G, 750k gold and Au750 are all platinum with a gold content of 18K. The purity of platinum jewelry is not expressed by "K". White gold and platinum jewelry sold in the market are not platinum jewelry. When buying wedding jewelry, please ask the operator to issue an invoice, which should clearly indicate whether it is platinum or white 18K gold. It is best to indicate the weight of the jewelry, so it is easier to claim compensation in case of fraud.
Question 4: What's the difference between platinum and platinum? What do pt990 and pt950 mean? International Platinum Association official explanation:
Platinum = platinum = Pt ≠ K platinum
Platinum (Pt) is a natural white precious metal. According to national regulations, only jewelry with platinum content above 850‰ can be called platinum jewelry, and it must be marked with Pt. Platinum jewelry usually bears the purity mark of Pt850, Pt900, Pt950 or Pt990.
Platinum, commonly known as platinum, is pure white. The reserves of platinum in nature are scarcer than gold, so its price is higher than that of Huang Jingui. Platinum can keep the true colors of white diamonds, and it is very strong. It is the best material for setting diamonds, and it is diamonds that make platinum a superstar among precious metals in jewelry. In China, the colors used in jewelry inlay are mostly Pt950 and Pt900, and Pt900 is the most commonly used.
PT990 refers to a precious metal containing 99% platinum.
PT950 is a precious metal containing 95% platinum.
Therefore, there is no so-called 18K or 750 (i.e. 750‰) purity in platinum jewelry.
Platinum, the main component of which is gold, is not natural white, but appears white after adding other metals. Platinum is not platinum (platinum). Platinum jewelry usually uses 18K or 750 to indicate the purity of gold contained in it.
At present, many people in the market say platinum and platinum actually mean platinum, which refers to silvery white metal containing gold.
When people in the shop say platinum, it means silvery white metal with 75% gold, and the price is around 250-280 yuan/gram.
I'm telling you, platinum is real platinum sold to you. The current price of PT950 is about 490 yuan /g, and that of PT 900 is about 470 yuan/g..
If you want to buy platinum jewelry, remember to see if there is PT on the tag. If we say 18K, it is platinum.
Generally, necklaces and rings will be engraved with marks! ! ! !
Question 5: Is platinum platinum platinum? Or synthetic gold? What does PT mean? In fact, platinum is platinum, and platinum is a natural rare precious metal. But now many people call platinum platinum for short, and platinum is a synthetic metal. "PT" is a unique symbol of platinum. If you buy platinum jewelry, you will generally use the imprint of PT plus numbers to indicate the material of the jewelry, and the numbers behind Pt indicate the purity of platinum. For example, I bought a platinum ring in Clety two days ago with the words "Pt900" on it. Is it easy to understand? Hope to adopt
Question 6: What metal is platinum? What's the difference between platinum and platinum? There are essential differences. The so-called "platinum" is actually platinum alloy, which is K gold. In China, ingots are often 18K, and there are yellow and rose-red ones. Their logo is AU750. Platinum is a jewelry metal similar to gold. Its symbol is PT, and there are three contents in the market: 900, 950, 990.
Question 7: 18K What's the difference between gold and platinum? Many friends have been confused about the difference between platinum and k gold. Here, I will give you a key explanation.
There are two kinds of precious metals commonly used in high-grade jewelry, namely gold (chemical element is Au) and platinum (chemical element is PT). Domestic jewelry counters are generally used to calling platinum platinum or all platinum.
Due to the soft texture of 24K gold, 18K gold is generally used for inlaid jewelry. K is the unit of purity, 1K=4. 167%, so 18K=75% and 24K= 100%. Sometimes we will see gold engraved with G 18K or Au750. 18K gold is an alloy consisting of 75% gold and 25% other precious metals. Because other precious metals have different compositions, 18K gold will include yellow 18K gold, white 18K gold and rose 18K gold.
Platinum will be softer if it is filled with platinum, so it is generally called PT950 or PT900 as inlaid jewelry with purity of 95% and 90%, and the corresponding PT word will also be engraved on the jewelry.
18K comparison between gold and platinum;
Advantages of 18K platinum:
1. 18K gold has high hardness and good ductility, so it is very suitable for inlay as jewelry gold, and will not be scratched and deformed after long-term wear. Generally speaking, 18k gold can provide better security for group inlaid styles or large carat main stones.
2. The color is changeable. According to the composition of the other 25% precious metal, it can form three colors: white, yellow and rose red.
3. Economical and practical, the price of platinum is often more affordable, economical and practical.
Disadvantages of 18K gold: Wearing 1-2 years may lead to oxidation and fading.
Advantages of platinum:
1. The purity is higher. Generally, the platinum content is above 90%. Compared with the 75% gold content of K gold, it is obviously more pure, so it is purer and never fades.
2. It is even more rare and precious. At present, the annual output of platinum in the world is about 140 tons, while the annual output of gold is about 3000 tons.
3. Platinum has stable physical and chemical properties, strong acid resistance, alkali resistance and high temperature resistance. And it will not have any allergic reaction when worn, and its melting point is higher than that of gold.
Disadvantages of platinum: due to its high purity, its hardness is softer than that of 18K gold, and it is easy to be scratched or deformed after being worn for a long time.
These two metals can be said to have their own strengths, and there is no absolute difference between good and bad, mainly depending on personal preferences. Personally, I prefer 18K gold with slightly higher cost performance, which is affordable, high in hardness and strong in safety for diamonds. However, the oxidation fading problem that many people are worried about is actually a small problem that can be solved by renovating for tens of dollars.
More jewelry knowledge introduction search Sina blog: Mu Zi diamond
Question 8: What's the difference between gold and platinum? The whiteness of platinum is natural, while the whiteness of white gold is only obtained by mixing gold with other metals. The color of platinum is usually enhanced by rhodium plating on the surface. However, this electroplating will wear away, thus making it appear the dark yellow inherent in platinum. A more direct way to distinguish two metals is to compare their weights. Even a simple platinum wedding ring is obviously heavier than the platinum one, which makes you feel at ease about its value. Platinum has a proprietary logo on the back to ensure platinum. When shopping, just turn the jewelry in your hand to the back. Real platinum jewelry, whether rings, pendants or slightly larger earrings, will have a line of tiny marks: Pt900 or Pt950. One of the characteristics of gold is its softness, so it is difficult to inlay various exquisite styles, especially when inlaid with pearls, precious stones and jadeite, it is easy to lose. Therefore, people add a small amount of silver, copper, zinc and other metals to gold to increase its strength and toughness. The gold ornaments made in this way are also called K gold.
K gold can be made into various colors as needed. K gold jewelry popular in the world has various colors, such as reactive color, white and so on. When 25% palladium or nickel is mixed with gold, it will turn white, and its main component is gold. This is called platinum.
As far as the current level of science and technology is concerned, it is impossible to extract pure gold materials with the purity of 100%. Therefore, the gold standard K, which indicates the pure gold content in gold products, generally refers to pure gold as 24K gold, but it is gold with a theoretical gold content of 100%, which does not actually exist. Therefore, in the national standard, merchants are not allowed to use the nonstandard standard method of "24K gold" to mark the gold content of gold jewelry. Since pure gold is called 24K, that is, the theoretical gold content is 100%, then 1K means that the gold product contains 1/24, which is about 4. 16%. 18K gold means that the gold content is 18/24, that is, it contains 75% pure gold, and the rest is other materials such as silver or copper.
As the saying goes, "there is no shortage of gold." General gold ornaments contain other metals below 1%. For the fineness of gold content of gold products, the national standard has very clear provisions, that is, every gold jewelry sold by merchants must be listed to indicate its gold content and weight. The weight of gold ornaments shall use the national legal unit of measurement. Its gold content should use "K gold" (excluding 24K gold), "pure gold" (with a gold content of not less than 99%) and "thousands of gold" (with a gold content of not less than 99.9%), and non-standard methods such as "thousands of gold", "pure gold" and "24K gold" and "9999" which do not actually exist should not be used.
Platinum is a natural white precious metal. The annual output of platinum is only one twentieth of that of gold, and it takes five months to extract one ounce of platinum from 10 ton platinum ore. Domestic platinum jewelry usually contains 90% pure platinum and is marked with "Pt900". Platinum has a natural white luster and will not fade after long-term wear. The hardness of platinum makes it the best friend of diamonds. And white gold is gold with some alloys, which appears white. It only contains 75% gold at most.
White gold cannot be marked with Pt mark, only gold and its purity can be marked according to its purity. For example, 18K platinum can only be stamped with "18K" and "G750". In the international precious metal market, the price of platinum far exceeds that of gold, which is the highest among all precious metals. In addition, some white jewelry may be made of silver or coated with white metal, which may show its original appearance after a long time. Although platinum is sometimes commonly known as platinum, it should be called "platinum" in a strict sense. Platinum means platinum in English. Therefore, the purity, rarity, durability and natural white luster of platinum are incomparable to platinum.
Therefore, in fact, some jewelry marked "platinum" on the market is not platinum jewelry, so it is very important to look at the imprint on jewelry when choosing.
Platinum and silver are similar in color, and inexperienced people are easily confused.
There are five ways to distinguish platinum from silver, as follows:
Comparative method. Platinum is grayish white to the naked eye, with a hard texture and a hardness of 4.3. With naked eyes, the color of silver is white, the texture is fine and smooth, the hardness is lower than that of platinum, and the hardness is 2.7.
Identification seal. Since each piece of jewelry must be engraved with the component seal, > >
Question 9: What kind of gold is yellow platinum? Yellow platinum is a precious metal synthesized from pure gold (18K) and PT900. Because pure gold and PT990 are the purest gold among gold and platinum, purer gold is softer and technically impossible, so it is generally synthesized by pure gold and PT900.
Question 10: Is necklace gold divided into gold and platinum? What is platinum? LZ, you used the right person. Let's start with gold!
Gold, the symbol of the chemical element Au, is a soft, golden yellow and corrosion-resistant precious metal. Gold is one of the rarest and most precious metals.
Although gold is a very soft metal, it is not as good as lead and tin. Nails can be used to draw marks on pure gold, which makes gold very easy to process. But this is not ideal for the manufacturers of decorations, because it is easy to scratch the decorations, make them lose their luster and even affect their appearance. Therefore, when gold is used to make jewelry, copper and silver are usually added to improve its hardness.
The percentage of gold is expressed by K.
Calculated by 24K, the gold content is 99%, and 22K contains 9 1. 7%, 18K contains 75. 1%, 14K contains 58. 5%, 12K includes 50%.
What is platinum?
Platinum (abbreviated as Pt) is a natural white precious metal. Because of its long history and inheritance in precious jewelry, natural white luster, pure and rare characteristics and unique position in the international market, it has become the most desirable choice for consumers.
Platinum is platinum.
Over the years, platinum has become a symbol of advanced, classic, precious and valuable in the hearts of many consumers. In Ci Hai, the annotation of platinum is "platinum". For many years, consumers in China used to call platinum platinum. However, not all white metals can be called platinum. Platinum is obviously different from other white metals in terms of historical inheritance, physical properties and price. Only platinum can be called platinum Platinum equals platinum, so there is no saying that platinum is good or platinum is good or platinum is good or platinum is good.
Moreover, only jewelry with platinum content above 85‰ can bear any of the following exclusive marks ―― platinum, platinum, platinum or platinum.
What is the difference between platinum and platinum?
Platinum (Pt) is a natural white precious metal. According to the national standard of precious metal jewelry, only platinum can be called platinum. In addition, only jewelry with platinum content above 850‰ can bear the exclusive logo of platinum-platinum (platinum, platinum) or Pt. After the mark, there are 1000 points indicating the purity (platinum content) of platinum, such as platinum (platinum, platinum) 950, Pt950 and so on. Just like a platinum ID card, it can guarantee the quality of platinum.
Platinum and platinum are completely different metals. The main component of platinum is platinum, which is a mixture of 75% gold and 25% other metals. So it is a mixture of gold and other metals, not platinum. Platinum is cheaper than platinum and gold and is widely used in jewelry making.
Discrimination method
The most direct way to distinguish platinum from other white metals is to find the unique symbol of platinum in jewelry-PT. According to the regulations, the back of each platinum jewelry must be engraved with a platinum exclusive logo: platinum (platinum, platinum) or Pt, and after the logo, there is one thousandth of platinum purity (platinum content), such as platinum (platinum, platinum) 950, platinum 950, platinum Pt990 (all platinum) and platinum Pt999 (all platinum). Just like a platinum ID card, it can guarantee the quality of platinum.
The code word is bitter. If LZ thinks it is helpful, please adopt it! ~