Does 925 Sterling Silver Turn Green?
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My 925 silver ring is leaving a green mark on my finger. Is this normal? How can I prevent it?
Yes, 925 sterling silver can turn your skin green, and this does NOT mean it is fake.
925 silver is 92.5% pure silver mixed with 7.5% copper. The copper reacts with sulfur in air, acids in sweat, and chemicals in perfumes, creating copper salts that leave a greenish residue.
Rhodium-plated sterling silver solves the green finger problem completely. The plating creates a barrier. It wears off after 6-12 months but can be re-plated for $20-$40.