Composition and characteristics of 925 sterling silver

925 sterling silver, also known as Sterling Silver, is a silver alloy composed of 92.5% pure silver (Ag) and 7.5% other metals (usually copper).

92.5% pure silver (Ag): This is the core component of 925 silver. Pure silver itself is very soft and easily deformed. In order to increase the hardness and durability of silver, other metals are usually added.

7.5% other metals: In most cases, this 7.5% component is copper (Cu), but it can also be other metals (such as zinc, nickel, etc.). Copper is added to increase the hardness of silver and make it suitable for making jewelry for daily wear.

2. Characteristics

Hardness and durability: Pure silver has a low hardness and is easily scratched and deformed. The addition of copper to 925 silver greatly improves its hardness and durability, and can withstand the wear and tear of daily wear, making it very suitable for making jewelry, accessories, tableware, etc.

Gloss and brightness: 925 silver has very good gloss and brightness. Due to the high content of pure silver, its surface presents an elegant silver-white luster, which is particularly shiny after polishing.

Oxidation: 925 silver will react with sulfides in the air, causing the surface of silver jewelry to oxidize and turn black (i.e. "silver black"). This phenomenon is normal, but it can be maintained by regularly cleaning and maintaining silver jewelry to keep it bright and beautiful.

Affordable price: Compared with precious metals such as gold and platinum, 925 silver is relatively affordable, making it a cost-effective material choice for jewelry and accessories.

Plasticity and design diversity: Due to its relatively high copper content, 925 silver has good plasticity and is suitable for making jewelry in a variety of styles. From modern simple styles to complex and exquisite engraved patterns, 925 silver can carry a variety of creativity and design.

Anti-allergic: 925 silver has a high silver content, so it is a hypoallergenic material for most people. In contrast, some low-quality silver alloys (such as nickel silver) may contain high nickel or other metal components, which may cause allergic reactions.

3. Difference from pure silver

Pure silver (999 silver): Pure silver contains 99.9% silver, with almost no other metal added. It has a very good luster, but because pure silver is too soft, it is easy to bend and deform, and is usually not suitable for making jewelry or items that are often worn.

The main difference between 925 silver and pure silver: Pure silver is softer and easier to deform, and is suitable for making some highly decorative items, such as trophies, souvenirs, etc.; while 925 silver improves its hardness and durability by adding metals such as copper, so it is suitable for making daily jewelry and more delicate crafts.