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What is s925, 925 silver, sterling silver, 990 silver and 999 silver?

What is s925, 925 silver, sterling silver, 990 silver and 999 silver?

2021-04-30

1. 999 Silver

999 silver refers to silver with a silver content of 99.9%. The silver content used to make 999 silver jewelry should not be less than 99.9%. It is also the 999 pure silver we usually call. It is also the highest purity silver on the market, and it is easy to identify in appearance, which is the true color of bright silver. The characteristic is that it is relatively soft, so it is not suitable for making jewelry like platinum or K gold.

What is s925


2. 990 Silver

990 silver refers to silver with 99.0% silver content, which is generally processed into silver jewelry such as bracelets and pendants. The stamps of the 999 pure silver and 990 pure silver are different. The surface of the 999 pure silver is engraved with "999 silver" or  "s999", while the surface of the 990 pure silver is engraved with "990 Silver", "s990" or  other stamps. They are both pure silver, but the 999 silver is easier to identify from the appearance, revealing a bright silver color.




3. S925/925 Silver/Sterling Silver

925 silver refers to a silver product with a silver content of about 92.5%, and a purity of about 92.5% is considered sterling silver. Because high-purity silver is soft and easily oxidized, 925 silver is added with 7.5% of other metals to make it have ideal hardness. 925 sterling silver is the international standard silver for making silver jewelry in the world. Other metals in 7.5 can be copper, zinc, etc. It is characterized by higher hardness than silver silver, not easy to deform, not easy to oxidize and discolor. As the silver content in silver jewelry decreases, its hardness increases to meet the needs of various colors, styles and inlaid jewelry.


Then what is the difference between s925 and 925? In fact, there is no substantial difference between the two. The S in S925 silver is the abbreviation of Sterling.

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