Make the next check visible
MIYUKI lists cautions for change from bright sun or time, rubbing or skin acid, dry-cleaning, and nickel use. It also says that the data comes from examination results and manufacturing history and is not absolute. A caution is a condition to manage, not a lifetime promise.
PRECIOSA maintains its own product and resistance documents. Keep one manufacturer lane per finish system, then make a short wear sample for a frequently handled piece.
Bench checklist
Before you commit
- Name the exact family or operation behind seed bead finish durability.
- Keep the source and retrieval date beside any precise claim.
- Identify the dimension, finish, or junction that limits the project.
- Test the intended materials before committing to the full design.
Keep the caveat
What this page leaves visible
A familiar label can organize a question, but it cannot prove that two materials are interchangeable. Keep the publisher's caveat attached and leave unknowns visible.
Evidence pack
Sources close to the decision
- MIYUKI Co., Ltd.: Delica Color and DurabilityThe A, B, C, D, and N caution meanings used in the finish guide.MIYUKI says the examination and manufacturing-history data are not absolute and can differ with use and environment. Checked August 24, 2026.
- PRECIOSA ORNELA: DownloadsCurrent catalogs, product information cards, certificates, and resistance documents for PRECIOSA families.A certificate or test report has a stated scope and date; it must not be generalized to every color or product. Checked August 24, 2026.
- U.S. Federal Trade Commission: Jewelry GuidesWhy material type, treatment, size, quality, durability, origin, and other product representations should be truthful and clear.This is general U.S. guidance, not personalized legal advice or a substitute for the current regulation text. Checked August 24, 2026.
