The difference between Silver 925 and 999
925 sterling silver actually refers to silver products with a silver content of 92.5%.
925 represents the purity of silver. This is the minimum required fineness for silverware, just like the fineness of 999 gold. Silver is a reactive metal that easily reacts with sulfur in the air, making silverware black. Therefore, try to wear it with as little contact with the air as possible, and it is not suitable to wear it in places with strong chemical gases. After contact with sulfur soap, it must be wiped off immediately. Chloride in sweat also affects silver.
Due to the characteristics of silver itself, 100% silver is very soft and easy to be scratched, and it is not suitable for more and more refined craftsmanship requirements, as well as the increasingly rich and exaggerated modeling requirements of modern fashion accessories. Plus 100% silver is prone to discoloration and tarnishing.
Due to the addition of 7.5% alloy, silver has ideal hardness, brightness and luster, and anti-oxidation. And it can be inlaid with various gems. Since then, silver jewelry has bright color, unique style, exquisite craftsmanship and mid-range fashion taste. quickly swept the world.
Silver and gold cannot be worn together, gold and silver are two different grades! It's a matter of etiquette.
The highest purity is 999, which is called Qianzu silver. The silver content is 99.9%. It is easy to oxidize and turn black. It needs to be worn carefully.
The second purity is 990, called pure silver, and the silver content is 90%.
999 and 990 are suitable for plain silver jewelry because of their high silver content and softness.
The most common one is 925 silver, called international standard silver, which is internationally recognized as the minimum standard of sterling silver.
925 silver is added with 7.5% copper alloy composition, the hardness is increased, and it is more suitable for flower-shaped jewelry. Finished silver jewelry is usually electroplated and polished, so it has stronger anti-oxidation ability than 999 and 990, but silver jewelry needs maintenance and cannot be worn regardless.
s is the mark of silver, and the jewelry should have marks such as s999, s990, s925 or thousands of pure silver and pure silver.
999 and 990 are usually used as gifts for the elderly and children. If young people are looking for fashion and good looks, they are more suitable for 925.
Usually wear it as much as possible to avoid contact with detergents, that is, do not wear it when washing hands, bathing, washing clothes, and washing dishes.
Also try to avoid contact with hard objects, because silver jewelry is prone to scratches