RAPAPORT… The Swiss Gemmological Institute (SSEF) has introduced a service that determines a pearl’s species using DNA fingerprinting.
The Basel-based laboratory has substantially expanded its database and capabilities, enabling it to identify each of the eight oyster species that account for the vast majority of gems available in the natural- and cultured-pearl trade, it said Tuesday. It achieved this through a partnership with the University of Zurich’s Institute of Forensic Medicine.
SSEF first developed DNA fingerprinting of pearls via a collaboration with Swiss university ETH Zurich, publishing the findings in an academic paper in 2013. Since then, improvements to the method have made it possible to take only a tiny amount of material from a pearl for testing to work.
“DNA fingerprinting will contribute to further documenting the origin and geographic provenance of historic natural pearls and traceability efforts in the cultured-pearl trade,” said SSEF director Michael Krzemnicki.
Image: The La Peregrina pearl. (SSEF)
SSEF Launches Service Identifying Pearl Species
The Bottom Line
- SSEF now identifies all eight major oyster species used in natural and cultured pearls through DNA fingerprinting.
- The service builds on a decade of research and partnerships with Swiss universities, including ETH Zurich and University of Zurich.
- DNA testing requires only a minimal sample, supporting provenance verification and historic pearl documentation.
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