Understand the 925 silver mark, tarnish and what to check before choosing sterling silver jewellery.
What does 925 silver mean?
A 925 mark indicates an alloy containing 92.5% silver by weight. The balance is usually another metal, often copper, which makes the material more practical for jewellery than fine silver. A hallmark is useful, but it does not tell you the maker, gemstone or surface treatment. Read the full material description as well.
Why does silver tarnish?
Silver can darken when its surface reacts with sulfur compounds in the air. Tarnish alone does not mean a piece is counterfeit. Moisture, perfume and storage conditions affect its appearance. Wipe the piece gently after wear and keep it dry and separate; follow the maker’s instructions for stones and special finishes.
A checklist before choosing
Check the product description for sterling silver, plating or oxidized finishes, gemstone identity, dimensions and weight. A wide ring or substantial earring may feel different from a slim design. Compare measurements, not photographs alone. Ask the seller about any unclear specification.
Frequently asked questions
Is 925 sterling silver real silver?
Yes. The standard alloy contains 92.5% silver; confirm any additional plating or finish separately.
Is silver tarnish permanent?
Many surface changes can be reduced with suitable care. Ask a jeweller before treating gemstones or special finishes.
