Stainless steel
On the label: Stainless steel · Metal
What it is
An iron alloy with chromium (and usually nickel) that resists rust. 316L (surgical) is the jewelry grade; it contains nickel, but bound so tightly that most nickel-sensitive people tolerate it. Heavy, hard, cheap to make, cannot be resized.
Metals: Solid metals: what the piece is made of all the way through. Purity is written as karat (gold) or parts per thousand (925 silver, 950 platinum).
Wikidata: Chromium-containing steel alloy resistant to corrosion. Q172587 →
In the research
515 PubMed papers mention it with jewelry, allergy, eyewear or UV; the three most recent:
- Reflective and Transmissive Off-Axis Sub-THz Beam Shaping Using Passive Complementary Split-Ring Resonators · Sensors (Basel, Switzerland), 2026
- Risk-Oriented Clinical Management and Observed Safety Outcomes of Acupuncture in Patients at Risk of Metal Allergy: A Single-Center Retrospective Case Series · Journal of integrative and complementary medicine, 2026
- Engineering of a wireless single capacitive discharge conductivity-clamped gene electrotransfer probe for naked nucleic acid therapeutics · APL bioengineering, 2026
A paper is a paper, not a verdict: titles are listed so you can read them, and a study on one fabric or one filter says little about the piece in your hand.
Pieces whose listing names it
24 on the siteMatched from the words in the supplier's listing; the full material line is on each product page.
Made in the USA
Made in the USA
Made in the USA
Made in the USA
Made in the USA
Made in the USA
Made in the USA
Made in the USA
Other metals
Clasp & Lens describes materials from the public record and does not appraise, grade or test pieces; what a listing states is the supplier's statement. If a piece causes a rash, take it off; a reaction that spreads or blisters is a doctor's question, and sunglasses are no substitute for impact-rated eye protection where that is required.