Silver tarnish and wear explained

Silver tarnish is a surface reaction, commonly producing dark silver sulphide when silver encounters sulphur-containing compounds. It is a form of corrosion. A changed colour alone does not establish that a piece is worn out, but it also cannot diagnose every surface problem. Start by identifying the metal and finish. CCI silver chemistry.

Decide which appearance you want to preserve

Some silver jewellery is deliberately darkened to emphasise detail. Tiffany’s instructions for its oxidised silver warn that silver polish can strip that finish and recommend a clean, dry cloth instead. Confirm your own maker’s instructions before treating a dark area as unwanted tarnish. Manufacturer’s finish-specific advice.

For an observation exercise, compare the present appearance with an earlier photograph and the original description. Note whether the colour change is widespread or confined to an edge, a contact area or a decorative recess. Take a new photograph before any treatment. These observations help you describe the change to a jeweller; they do not identify its cause.

Notice changes beyond colour

Loose powder, flaking, blistering or pitting call for closer examination. CCI distinguishes active corrosion from stable surface changes and describes particular problems where plating is damaged. A lifting layer should not be treated as a routine polishing task. Stop home treatment and seek professional assessment if you see these signs. CCI corrosion identification.

If the item is plated, keep coating loss among the possibilities rather than labelling every changed patch tarnish. Frequent polishing can remove silver plating. The surface and the underlying metal can be difficult to identify by appearance, which is another reason to ask for the material record. CCI plated-metal cautions.

Treat less until the construction is known

Removing tarnish can remove underlying silver. CCI also warns that dips can damage other materials and become trapped inside sealed hollow components. Its conservation methods are not universal home-jewellery recipes. Do not choose a dip, foil bath or abrasive treatment from a colour change alone. CCI treatment limits.

Make the next step specific. Ask the jeweller to identify the finish, explain the likely change and propose a method suitable for the assembled item. State whether you want the original dark detail retained. Request a condition assessment first if the appearance has changed alongside a loose stone, damaged joint or altered shape.

Use alloy and plating descriptions to assemble that material record, and the cautious cleaning plan for mixed-gemstone pieces. Once the condition and care method are confirmed, separate jewellery storage helps you plan for contact between pieces.