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  • Testing
    • How to submit

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

      How to submit
    • Quick links
      • Pricing
      • Digital order form
      • Download order form (pdf)
      • Small diamond order form (pdf)
      • On-site testing
    • Reports
      • Verify a SSEF report
      • Understanding a SSEF report
      • SSEF Premium reports
      • GemTrack™
      • Age Dating
      • DNA Fingerprinting
    • More info
      • Coloured Gemstones
      • Diamonds
      • Pearls
      • Small Diamonds
      • Jewellery
  • Education
    • Gemmological courses

      Please click on the button below to discover SSEF’s gemmological course options, calendar and prices.

      Discover our courses
    • Course options
      • Basic Gemmology
      • Basic Diamonds
      • ATC Coloured Gemstones
      • ATC Gems & Jewellery
      • Advanced Pearls
      • Advanced Small Diamonds
      • Scientific Gemmology Course
    • More courses with us
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1990

Reliability of origin determinations for gemstones

Reliability of origin determinations for gemstones. Published in Gemological Digest, 1990. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
Origins
1990

Ein Beitrag zu den Erkennungsmerkmalen der Kaschmir-Saphire

Ein Beitrag zu den Erkennungsmerkmalen der Kaschmir-Saphire. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1990. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
OriginsSapphire
1990

A contribution to the distinguishing characteristics of sapphires from Kashmir

A contribution to the distinguishing characteristics of sapphires from Kashmir. Published in Journal of Gemmology, 1990. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
OriginsSapphire
1990

Einige gemmologische Aspekte bei ostafrikanischen Korunden

Einige gemmologische Aspekte bei ostafrikanischen Korunden. Published in GZ, 1990. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
OriginsRubySapphire
1989

Certitude de la détérmination d’origine

Certitude de la détérmination d’origine. Published in Revue AFG, 1989. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
Origins
1987

The emeralds from the Belmont Mine, Minas Gerais, Brazil

The emeralds from the Belmont Mine, Minas Gerais, Brazil. Published in Journal of Gemmology, 1987. Author(s): H.A. Haenni, D. Schwarz, M. Fischer

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Authors

  • D. Schwarz
  • H.A. Haenni
  • M. Fischer
Research Articles
EmeraldOrigins
1987

On corundums from Umba, Tanzania

On corundums from Umba, Tanzania. Published in Journal of Gemmology, 1987. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
OriginsSapphire
1987

Die Smaragde der Belmont-Mine bei Itabira, Minas Gerais, Brasilien: Vorkommen und Charakteristika

Die Smaragde der Belmont-Mine bei Itabira, Minas Gerais, Brasilien: Vorkommen und Charakteristika. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1987. Author(s): H.A. Haenni, D. Schwarz, M. Fischer

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Authors

  • D. Schwarz
  • H.A. Haenni
  • M. Fischer
Research Articles
EmeraldOrigins
1986

Korunde aus dem Umba-Tal, Tansania

Korunde aus dem Umba-Tal, Tansania. Published in Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1986. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
Research Articles
OriginsSapphire
1983

Un gisement d’émeraudes à Madagascar

Un gisement d’émeraudes à Madagascar. Published in Revue A.F.G., 1983. Author(s): H.A. Haenni

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Authors

  • H.A. Haenni
  • H.H. Klein
Research Articles
EmeraldOrigins

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