S925什么意思

"S925" is a hallmark or stamp used on sterling silver jewelry and other items to indicate the purity of the silver. It means that the item is made of 92.5% pure silver, which is the standard for sterling silver. The remaining 7.5% is typically made up of other metals, usually copper, which is added to the silver to increase its hardness and durability.

The "925" number refers to the fineness of the silver, meaning that out of 1,000 parts, 925 parts are pure silver, and the rest are other metals. This is the standard for sterling silver in many countries, including the United States, the United Kingdom, and Australia.

When you see the "S925" hallmark on a piece of jewelry or another item, it means that the item is made of sterling silver and is of a certain quality. It also means that the item has been tested and meets the standards for sterling silver set by the country in which it was made.