Help & Knowledge Base
Frequently Asked Questions
Everything you need to know about our stainless-steel metallurgy, care, and delivery.
No, absolutely not. All Sumzora Studio jewelry is engineered in medical-grade 316L stainless steel and finished with 18K Real Gold Physical Vapor Deposition (PVD) vacuum coating. It contains zero nickel or lead, meaning it will never rust, tarnish, or cause green oxidation on your skin.
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