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Alexandrite

Tsarstone collectors guide

SSEF

An independent, international, non-profit organization dedicated to the identification, treatment and origin of gemstones.

SSEF Swiss Gemmological Institute
Homepage Address Contact
www.ssef.ch/ Falknerstrasse 9

Basel CH-4001
Switzerland
N: Henry Hänni
T: +41 61 262 06 40
F: +41 61 262 06 41
E: gemlab@ssef.ch

SSEF laboratory offers analysis of precious stones and issue test reports for diamonds, coloured stones and pearls. It was recognized in 1978 by the International Confederation of Jewellers and Goldsmiths (CIBJO and also a member of the International Coloured Stone Association (ICA).

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Bibliographic details
Page title SSEF
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 12 August 2011 01:16 UTC
Date accessed 09 April 2026 09:31 UTC
Permanent link http://w.alexandrite.net/viewpage.html?id=WDD-003-00018
AMA style
David Weinberg. "SSEF". In Alexandrite Tsarstone Collectors Guide. August 12, 2011, 01:16 UTC. Available at: http://w.alexandrite.net/viewpage.html?id=WDD-003-00018. Accessed April 09, 2026.
APA style
"SSEF". (2011, August 12). In Alexandrite Tsarstone Collectors Guide. Retrieved 09:31, April 09, 2026, from http://w.alexandrite.net/viewpage.html?id=WDD-003-00018.
Bluebook style
"SSEF", http://w.alexandrite.net/viewpage.html?id=WDD-003-00018 (last visited April 09, 2026).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "SSEF", http://w.alexandrite.net/viewpage.html?id=WDD-003-00018 () (as of Apr. 09, 2026, 09:31 GMT).
CBE/CSE style
David Weinberg. "SSEF". In Alexandrite Tsarstone Collectors Guide. 2011 Aug 12, 01:16 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2011 Aug 12, 01:16 UTC [cited 2026 Apr 09]. Available from: http://w.alexandrite.net/viewpage.html?id=WDD-003-00018.
Chicago style
David Weinberg, "SSEF", http://w.alexandrite.net/viewpage.html?id=WDD-003-00018, (accessed April 09, 2026).
MLA style
"SSEF". Alexandrite Tsarstone Collectors Guide. 12 Aug 2011, 01:16 UTC. 09 Apr 2026 http://w.alexandrite.net/viewpage.html?id=WDD-003-00018
MHRA style
David Weinberg, "SSEF", Alexandrite Tsarstone Collectors Guide, 12 August 2011, 01:16 UTC, http://w.alexandrite.net/viewpage.html?id=WDD-003-00018 [accessed 09 April 2026].
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