Open new jewelry boxes. Allow them to air out for at least one month before use. The sulfur present in glue could cause silver to tarnish.
Separate all your jewelry by metal or type. Certain metals react in the presence of other metals, causing tarnish. For example, horn and tortoiseshell contain sulfurous properties, which react with silver to create tarnish.
Store metal jewelry in a small, air-tight containers. Air-borne chemicals such as oxygen and sulfur play roles in tarnishing and rusting. Store silver with pieces of charcoal. The charcoal helps absorb additional sulfur.
Place jewelry containing iron in a humidity-free container or place a small dehumidifier near iron jewelry. Moisture and oxygen combine with iron to create iron oxide, or rust.
Polish your rings regularly — at least once per month — using polish appropriate for that specific metal.