The difference between platinum rings and gold rings The difference between platinum rings and silver rings

Rings are a very common type of jewelry. Rings are made of many materials. Rings of different materials have different wearing effects and their prices vary greatly. You must be careful when choosing a ring.

The difference between platinum and gold is first reflected in the marking. There are many types of gold, and there are different types according to their content. Thousand-carat gold is a kind of gold with the highest purity. Usually, the marking of Thousand-carat gold is generally marked as Thousand-carat gold, 999 gold, gold999 or g999. Platinum is a real "white gold". Its chemical composition is Pt. Therefore, in platinum jewelry, its marking is often Pt followed by its content. The most common one now is "Pt950", which means it contains more than 95% platinum. There are also "Pt900" and "Pt850". If the content reaches more than 99%, it can also be called "full platinum". From its marking, you can see the difference between platinum and gold. However, some unscrupulous merchants now mark gold with the logo of platinum, and some customers are often deceived. Therefore, the difference between platinum and platinum is not enough from the marking alone. It can be distinguished from several aspects such as hardness, specific gravity and melting point. In terms of hardness, platinum is harder than gold. Platinum of the same volume is heavier than gold, and you can usually feel it when you hold it in your hand. The melting point of platinum is higher than that of gold. The difference between platinum and gold is also reflected in the ability to be inlaid with jewelry, such as platinum rings can be inlaid with diamonds, etc., while gold cannot. Platinum is much rarer than gold, and it is brighter than gold, so it is more expensive than gold.

1. Comparison method: Platinum is grayish white with the naked eye, and its texture is relatively hard, with a hardness of 4.3. Silver is pure white with a relatively fine and smooth texture, and its hardness is lower than that of platinum, with a hardness of 2.7.

2. Check the seal: Since each piece of jewelry must be engraved with the seal of its composition, if you see Pt, Platinum or Plat, it is platinum; if you see S or Silver, it is silver. In addition, pay attention to the symbol for copper-plated silver, which is SF.

3. Weighing: If the seal is blurred or cut off, this method can be used. Platinum has a high density, with a specific gravity of 21.4 kg/dm3, while silver has a specific gravity of 10.49 kg/dm3. In this way, the weight of the same volume of silver is only half of that of platinum, and the two are easy to distinguish by comparison.

4. Cremation method: Sometimes when there is less material, the weight is not noticeable in the hand, and there is no seal, then this method is the only choice. Platinum is heated or burned, and the color does not change after cooling; while silver is heated or burned, and the color becomes moist red or black red after cooling.

5. Chemical method: Grind the platinum on a touchstone, then drop a few drops of a mixture of nitric acid and hydrochloric acid. If there are wear marks, it means it is platinum. As for the quality, there is only some difference in color. If this liquid is dropped on silver, the wear marks will dissolve.

1. Ingredients

Platinum: Platinum (Pt), a natural element, is a rare precious metal element in the earth's crust. Its chemical properties are more stable than gold and its price is also higher than gold. According to the national precious metal jewelry standards, only platinum can be called white gold. The "Pt900" or "Pt950" seen on jewelry products means that the platinum content of the jewelry is 90% and 95% respectively. In addition, only jewelry with a platinum content of more than 85% can carry any of the following proprietary marks - platinum, platinum, platinum or Pt. The four most common varieties are Pt850, Pt900, Pt950 and Pt990.

White gold: It is a white alloy made by melting gold and palladium or nickel, silver, copper, zinc and other metals. Its main component is still gold, with a maximum content of 75%.

2. Imprint

Platinum means Pt. "Pt950" means 95% platinum. Jewelry containing more than 99% platinum is usually marked with "full platinum". When purchasing, just turn the jewelry over. On real platinum jewelry, whether it is a ring, pendant, or a tiny earring, there will be a small line of marks: Pt900 or Pt950. White K gold indicates the K number. K means the gold content. For example, 18K white, 750G, and 750 gold are all white K gold with a gold content of 75%. The purity of platinum jewelry does not need to be indicated by "K".

3. Weight:

Platinum has the highest density among all inlaid metals, so platinum jewelry of the same style and size is much heavier than white gold jewelry, and it feels obviously heavy. Even a simple wedding ring made of platinum is obviously heavier than one made of white gold.

4. Color:

The color and luster of platinum are natural and last forever. Pure platinum is silvery white with a metallic luster. White gold is a white appearance obtained by fusing gold with other metals. The color of white gold is white with a beige tint, because its color is usually enhanced by rhodium plating on the surface, but this plating will wear off, causing it to show the dull yellow color inherent in white gold.

5. Melting:

The melting point of platinum reaches 1773℃, which is much higher than that of white K gold. Ordinary welding guns cannot melt platinum, and the color of platinum does not change after cooling. However, the surface of K gold jewelry is a smoky gray oxide layer, and the lower the color, the darker it is.

6. Click test:

If mercury is applied on platinum, the platinum will not be contaminated, but K gold will combine with mercury and become contaminated.

How to clean platinum to keep it bright

Regular cleaning can keep the bright side of platinum forever and make diamond jewelry shine as before. How to clean platinum is very professional, and a good method can make platinum as bright as new. Platinum has good chemical properties and is generally not easy to be damaged or corroded. However, during the wearing process, it is inevitable that it will be contaminated with dust, dirt, etc., so it still needs to be cleaned frequently. How to clean platinum? Cleaning platinum is relatively simple, and many times you can do it at home. How to clean platinum at home? If the platinum is not too dirty, you can use talcum powder for children to wipe the platinum jewelry, and then rinse it with clean water. You can also soak it in a mild detergent for a while, and then use a soft brush to scrub the platinum jewelry. Be careful not to use too much force.