Paraíba tourmaline: the colour name does not prove Brazilian origin
An intensely greenish-blue tourmaline may be offered as Paraíba. Clarify two questions: does it meet the variety criteria, and what can be established about its country of origin?
Variety and geography
Paraíba's name is historically linked to Brazil, but the accepted gemmological definition concerns certain colours associated with copper and manganese, regardless of geographic origin. Brazilian, Nigerian and Mozambican material has been studied comparatively. Colour intensity alone cannot reliably determine origin; analytical data and reference samples are required.
The source map can expand. Read the separate 2026 announcement about Ethiopia. Older guides remain useful methodologically, but their source lists should not be treated as final.
Check the document
- Exact material and variety identification.
- Whether an origin conclusion is actually included.
- Limitations or an inconclusive result.
- Correspondence between stone, dimensions and report number.
A seller's assumption cannot complete an inconclusive result. If an origin commands a premium, request documentation supporting that exact claim.
Colour remains a visual choice
Compare specimens in the same light, with neutral photographs and motion. Record dimensions and observed transparency. A prestigious name does not automatically compensate for an appearance you dislike.
Read our tourmaline guide. For an undocumented stone, begin with identification, then decide whether additional origin analysis is needed.
Sources and further reading
Research: 16 September 2026. An informative editorial guide; identifying a gemstone requires examination of the individual specimen.
