Market · Market & Value
Certification of Ethiopian Paraiba Tourmaline
A laboratory report is the primary evidence that a stone is copper-bearing tourmaline. Knowing which section answers which question prevents the most common misunderstandings.
- By
- Paraiba Ethiopia Editorial Team
- Reviewed by
- Review pending
- Updated
What does a report contain?
Identification (species), variety (e.g. Paraíba), a comments section confirming copper, treatment findings and — optionally — an origin opinion.
| Section | Answers |
|---|---|
| Species | Is it tourmaline? |
| Variety | Does it meet Paraíba criteria? |
| Comments | Was copper (and manganese) detected? |
| Treatment | Is there clarity enhancement? Can heating be determined? |
| Origin | Is a geographic origin opinion given? |
How do you verify a report?
Use the issuing laboratory’s online report check, compare weight and measurements with the stone, and confirm the report date.
References
- LMHC information sheet on Paraíba tourmaline nomenclature. Laboratory Manual Harmonisation Committee (LMHC).Citation to be verifiedInsert the current information sheet number, revision date and URL.
- Laboratory guidance on treatment disclosure for tourmaline (heating and clarity enhancement). Recognised gemological laboratory.Citation to be verified
Author
Paraiba Ethiopia Editorial Team
The editorial team researches and writes Paraiba Ethiopia’s educational content on copper-bearing tourmaline, prioritising laboratory nomenclature and published gemological literature over trade claims.
Technical reviewer (assignment pending)
Independent gemological reviewer
Placeholder. A qualified gemologist will be named here once technical review of this page is complete. Until then, treat technical statements as editorially prepared but not yet independently reviewed.
First published 1 October 2026. Read our editorial policy
Continue reading
- GemologyHow Ethiopian Paraiba Tourmaline Is IdentifiedA step-by-step explanation of how gemologists identify copper-bearing tourmaline: standard tests, microscopy, UV-Vis-NIR spectroscopy, EDXRF and LA-ICP-MS chemistry, treatment detection and origin opinions.
- GemologyTreatment of Ethiopian Paraiba TourmalineHow copper-bearing tourmaline is treated, what laboratories can detect, and how treatment should be disclosed.
- MarketEthiopian Paraiba Price and Value FactorsThe factors that determine the value of Ethiopian copper-bearing tourmaline: nomenclature, colour, clarity, size, cut, treatment, laboratory reports and origin — and why reliable price figures are scarce.