Materials glossary / Standard and mark
Conflict-free
On the label: Conflict-free · Standard and mark
What it is
A claim that a diamond was not mined to fund armed conflict, under the Kimberley Process; it covers rough diamond origin, not labor conditions, and is self-certified at the retail end.
Standard and marks: The marks, tests and laws behind the words on a label: karat stamps, UV400, ANSI Z80.3, the FTC Jewelry Guides, Prop 65.
In the research
2 PubMed papers mention it with jewelry, allergy, eyewear or UV; the three most recent:
- Symptom scores in the diagnosis of pediatric cow's milk protein allergy: A systematic review · Pediatric allergy and immunology : official publication of the European Society , 2021
- Neutrality and curiosity: elements of technique · The Psychoanalytic quarterly, 2007
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
2 on the siteMatched from the words in the supplier's listing; the full material line is on each product page.
Other standard and marks
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.