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  • Testing
    • How to submit

      Please click on the button below to get all the necessary information for your testing inquiries.

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    • Quick links
      • Testing prices
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    • Reports
      • Verify a SSEF report
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    • More info
      • Coloured Gemstones
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  • Education
    • Gemmological courses

      Discover SSEF’s gemmological courses, calendar, and prices.

      Discover all courses
      Apply for SSEF course
    • In-person courses
      • Basic Gemmology
      • Basic Diamonds
      • Advanced Coloured Gemstones
      • Advanced Jewellery
      • Advanced Pearls
      • Advanced Small Diamonds
      • Scientific Gemmology
      • Scientific Diamonds
    • Further options
      • Free Online Courses by SSEF
      • The Emerald Course NEW
      • Tailored Courses
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2017

Black Pearls – Grey Pearls

Black Pearls – Grey Pearls. Published in Journal of Gemmological Association of Hong Kong GAHK, 2017, 38, 32-24. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
Pearl
2017

Cobalt diffusion-treated spinel

Cobalt diffusion-treated spinel. Published in IGC Namibia 2017 Abstract Proceedings, 151-153. Author(s): M.S. Krzemnicki, H.A.O. Wang, T. Stephan, U. Henn

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Authors

  • H.A.O. Wang
  • M.S. Krzemnicki
  • T. Stephan
  • U. Henn
Research Articles
SpinelTreatments
2017

Traceability of gemstones: challenges and opportunities

Traceability of gemstones: challenges and opportunities. Published in IGC 2017 Namibia Abstract Proceedings, 140-141. Author(s): L.E. Cartier, M.S. Krzemnicki, H.A.O. Wang, H.A. Haenni

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Authors

  • H.A. Haenni
  • H.A.O. Wang
  • L.E. Cartier
  • M.S. Krzemnicki
Research Articles
Traceability
2017

Pearl farmers hit by water pollution clean up

Pearl farmers hit by water pollution clean up. Published by China Dialogue, 16th November 2017 Link to article: https://chinadialogue.net/en/business/10220-pearl-farmers-hit-by-water-pollution-clean-up/ Author(s): L.E. Cartier, J. Tu

Authors

  • J. Tu
  • L.E. Cartier
Research Articles
PearlTraceability
2017

Preserving the heritage of gemstone regions and resources worldwide: Future directions.

Preserving the heritage of gemstone regions and resources worldwide:Future directions. Published in Episodes, 2017, 40, 3, 233-236. Author(s): L.E. Cartier

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Authors

  • L.E. Cartier
Research Articles
GemmologyTraceability
2017

Marble-hosted ruby deposits of the Morogoro Region, Tanzania

Marble-hosted ruby deposits of the Morogoro Region, Tanzania. Published in Journal of African Earth Sciences, 2017, 134, 626-643. Link to article: https://doi.org/10.1016/j.jafrearsci.2017.07.026 Author(s): W.A. Balmer, C.A. Hauzenberger, H. Fritz, C. Sutthirat

Authors

  • C. Sutthirat
  • C.A. Hauzenberger
  • H. Fritz
  • W.A. Balmer
Research Articles
OriginsRuby
2017

Gemmological investigations on pearls and emeralds using neutron imaging

Gemmological investigations on pearls and emeralds using neutron imaging. Published in Physics Procedia, 2017, 88, 134-139 Link to article Author(s): D. Mannes, C. Hanser, M.S. Krzemnicki, R.P. Harti, I. Jerjen, E. Lehmann

Authors

  • C. Hanser
  • D. Mannes
  • E. Lehmann
  • I. Jerjen
  • M.S. Krzemnicki
  • R.P. Harti
Research Articles
EmeraldMethodsPearl
2017

From classic inclusions to neutrons (2017)

Presentation by Dr. Michael S. Krzemnicki at 2017 Swiss Gemmological Society conference in Zermatt. Talk entitled ‘From classic inclusions to neutrons: A ‘fresh’ look at modern gemmology’.

Presentations
Gemmology
2017

Emeralds and the saga of cleaning and filling fissures

Emeralds and the saga of cleaning and filling fissures. Facette (2017) Author(s): M.S. Krzemnicki

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Authors

  • M.S. Krzemnicki
Research Articles
EmeraldTreatments
2017

Le talisman de Charlemagne: nouvelles découvertes historiques et gemmologiques

Le talisman de Charlemagne: nouvelles découvertes historiques et gemmologiques. Published in AFG Revue Française de Gemmologie, 2017, 199, 18-25. Author(s): G. Panczer, G. Riondet, L. Forest, M.S. Krzemnicki, F. Faure

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Authors

  • F. Faure
  • G. Panczer
  • G. Riondet
  • L. Forest
  • M.S. Krzemnicki
Research Articles
Sapphire

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