925 Sterling Silver:
925 Sterling Silver is a combination of 92.5% pure silver and 7.5% of another metal, and it is the highest percentage of fine silver possible for jewelry subject to everyday wear. Fine silver (99.9% pure) is generally too soft and malleable for jewelry. Therefore, it is usually combined with copper to give it strength, while at the same time preserving both the ductility and beauty of its original form.
Silver is often coated on a base metal, such as copper, brass, white metal and nickel, to give it a silvery white, smooth and shiny finish. Silver plated jewelry often radiates purity and simplicity.