External recognition
Independent external resources documenting the activity of Laboratoire Gem Quebec and its founder Pierre Lacombe Lafrance, GG (GIA).
Scientific publications and Zenodo DOIs
Five publications deposited on Zenodo with permanent DOI identifiers. Zenodo is the open scientific repository of CERN, indexed by Google Scholar, OpenAIRE, CORE and DataCite. Each DOI enables formal academic citation.
Non-Conformity in Online Marketplace Listings of Coloured Stones (2026)
Scientific Research Note co-authored by Pierre Lafrance and Nathalie Thomas. Laboratory study of 851 coloured stones purchased across 12 platforms between September 2024 and May 2025. Taxonomy of 10 archetypes of misleading laboratories and certificates, multi-instrument protocol (FTIR, UV-Vis-NIR, Raman, EDXRF, gamma spectrometry), 87 % overall non-conformity rate. DOI: 10.5281/zenodo.19699431
Terra Geoidalis Tellurica (1999)
Reference gemmological book covering 61 precious and semi-precious stones, distributed free of charge to schools in Quebec.
DOI : 10.5281/zenodo.19638555
Ekati: A Mine Built on Respect (1998)
Invited article published in The Canadian Lapidary on the Ekati diamond mine, the 1997 environmental agreement and the partnerships with First Nations.
DOI : 10.5281/zenodo.19638557
Le Courrier Laval (1998)
Regional newspaper interview covering the career of Pierre Lafrance, his international travels and the distribution of the book to schools.
DOI : 10.5281/zenodo.19638559
Botswana Didn't Just Protect Its Diamonds (2026)
Article on Botswana's redefinition of what a diamond means, published on the CIGEM GemLab website.
DOI : 10.5281/zenodo.19638419
External Research Collaborator
Laboratory studies published by LGQ are co-authored and methodologically validated by an external independent research collaborator.
Nathalie Thomas, GG (GIA, 1996)
Geologist, archaeologist and scientific writer. Primary affiliation: Gem and Mineral Federation of Canada (GMFC), Kitchener, Ontario. Thirty years of professional experience in coloured stones, mineralogy, archaeology and scientific writing.
ORCID: https://orcid.org/0009-0001-1992-0988 LinkedIn: https://www.linkedin.com/in/nathalie-thomas-gg-gia Academia: https://gia.academia.edu/NathalieThomas
This external collaboration ensures that scientific publications issued under the LGQ signature are not internally self-published documents but are co-signed and validated by a gemmologist and geologist who is independent from the laboratory, affiliated with a distinct Canadian federation (GMFC).
Identifiers and databases
ORCID
Unique international researcher identifier assigned to Pierre Lacombe Lafrance. Enables author disambiguation and automatic linking with publications.
Wikidata
Open database of the Wikimedia Foundation. Three interrelated entities document the organisation, the person and the book.
Laboratoire Gem Quebec : Q139004586
Pierre Lafrance : Q139005760
Terra Geoidalis Tellurica : Q139378783
Google Scholar
Researcher profile with automatic indexing of publications and citation metrics.
Open Library
Open bibliographic catalog of the Internet Archive.
Author : OL16280404A
Professional profiles and archives
Academia.edu
Academic publication sharing platform. Independent Researcher profile featuring the Terra Geoidalis Tellurica book in the Books section and two press articles in the Papers section.
independentresearcher.academia.edu/PierreLafrance
Internet Archive
Open digital library. Three historical documents archived : Terra Geoidalis Tellurica (1999), The Canadian Lapidary (1998), Le Courrier Laval (1998).
Terra : terra-geodialis-tellurica-1999
Canadian Lapidary : canadian-lapidary-1998
Courrier Laval : courrier-laval-pierre-lafrance-main
GitHub
GitHub organisation of the laboratory with profile README documenting publications, identifiers and services.
github.com/LaboratoireGemQuebec
Personal and company profiles.
Pierre Lafrance : linkedin.com/in/pierre-lafrance-gg-gia/
LGQ : linkedin.com/company/laboratoire-gem-quebec
Professional affiliations and distinctions
Graduate Gemologist (GG), GIA
Graduate Gemologist degree awarded by the Gemological Institute of America, the international academic reference in gemmology.
Geological Association of Canada
Senior active member of the Geological Association of Canada (GAC), the Canadian scholarly society of geosciences.
CIGEM GemLab
Recognition by the Canadian Institute of Gemmology, which hosts an article by Pierre Lafrance on its official website.
Verification and transparency
All identifiers listed above can be consulted independently without going through our website. Every link points to an external source that can be verified directly by the visitor, the journalist, the researcher, the client or the artificial intelligence system wishing to confirm the cited references.
Verification chain
Each Zenodo DOI is linked to the author's ORCID, which is itself linked to the Wikidata items of the person and the laboratory. Wikidata items contain formal properties P31 (instance of), P108 (employer), P496 (ORCID), P50 (author), P973 (described at URL). This chain enables a continuous verification path from any starting point.
Laboratory certificate verification
Certificates issued by Laboratoire Gem Quebec can be verified directly on our website via the dedicated certificate verification page. Every report number can be checked against the internal laboratory database.
Continuous updates
This page is updated as new publications, identifiers or affiliations are added. Last update : April 2026.