Can stainless steel jewelry rust?

Generally speaking, stainless steel jewelry is highly resistant to rust. However, under certain circumstances, it may still rust. Here are some factors that can cause stainless steel jewelry to rust:

1. Environmental exposure: Prolonged exposure to saltwater, high humidity, or harsh chemicals can damage the passivation layer, leading to rust.
2. Quality of the stainless steel: Not all stainless steel is of the same quality. Lower-quality stainless steel may contain less chromium, making it more prone to rust.
3. Scratches and wear: Deep scratches can penetrate the passivation layer, exposing the underlying iron to moisture and oxygen, which can cause the jewelry to rust.