The official explanation of the International Platinum Association: Platinum = Platinum =Pt ≠ K Platinum (PT for short) 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. 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. Therefore, in China, only platinum is called platinum; Please refer to the "Platinum Credit Card" series launched by major banks. Platinum is an element and platinum is a mixture. Platinum: Platinum is chemically more stable than gold and its price is higher than that of Huang Jingui. Used to make high-end jewelry. The "pt900" or "pt950" seen on jewelry products represent that the platinum content in jewelry is 90% and 95% respectively. 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. The Regulation and Naming Method for the Purity of Jewelry and Precious Metals stipulates that the total content of platinum and palladium shall not be less than 950‰. Platinum jewelry is crowned with platinum or Pt with a purity of one thousandth. For example: 990, Pt990 or enough platinum.

All platinum is soft, so if you want to set diamonds, you must form an alloy. Even if 5% alloy is added, Pt can be hardened to meet the processing requirements. Part of the added alloy component must be platinum group metal.

The allowable purity in Japan is 1000.950.900.850, and there may be a slight (0.5%) negative difference. The purity of 850Pt is generally used for chains, and Pt900 is the most commonly used purity. As Japan is the most important export market in Hong Kong, Hong Kong adopts Japanese standards. The United States stipulates that if the purity is called Pt, it must contain at least 50% platinum and 95% platinum group metals. Purity with platinum content higher than 95% can be marked with Pt. Jewelry with platinum content between 75% and 95% must also be marked with platinum group metals. Jewelry with platinum content between 50% and 75% must be marked with the name and content of platinum group metals. Such as 585 platinum and 365 palladium (585 platinum and 365 palladium). Only the United States allows "K platinum" alloy. Specific gravity of Pt-Pd alloy: Pt 950-20.64pt900-19.88pt850-19.18k The difference between platinum and platinum. Strictly speaking, K platinum cannot be equated with platinum. Platinum is a natural white precious metal. At present, it is the highest price among all precious metals in jewelry. All platinum ornaments on the market have the symbol "PT", which is the English abbreviation of platinum. Platinum is a white alloy made of gold and other metals. The so-called 18K platinum is actually composed of 75% gold and 25% other metals. Therefore, K platinum cannot be marked with the "PT" mark, and only gold and purity can be marked according to its purity. For example, 18K platinum can only be stamped with "18K" and "G750". So, how to simply distinguish the two? First of all, it is more reliable to buy these precious jewelry in big shopping malls. The most important thing is to read the label clearly and see whether the jewelry is marked with "K" or "PT". When purchasing platinum jewelry, the operator should be required to issue an invoice, and the invoice should 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. The difference between platinum and platinum is 1: The metal composition of the two components 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 difference between platinum and platinum is 1: The metal composition of the two components 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. In addition, because platinum is an alloy with low purity, its wear resistance and hardness will be better than platinum. If the diamond is large, platinum inlay is generally not as strong as platinum. 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‰. KK number should be marked on platinum. 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.