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Schweizerische Gemmologische Gesellschaft
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Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Inclusion of apatite in ruby from Tanzania
Natural etching structure on a crystal face of diamond (trigons), polarised light
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Two-phase inclusions in tourmaline from Namibia
Fluid inclusions in quartz with bituminous daughter minerals, China
Stress fissure («sun spangle») in baltic amber
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia

Links

Associazione Italiana Gemmologi
Deutsche Gemmologische Gesellschaft
GRS GemResearch Swisslab AG
Federation of European Education in Gemmology
Gemological Institute of America GIA
Gemmological Association of Great Britain
Schule für Gestaltung Zürich
 
 
The World Jewellery Confederation CIBJO
Zentralverband Schweizerischer Goldschmiede und Uhrenfachgeschäfte VSGU
 
 
Gübelin Gem Lab
Gübelin Akademie
Schweizerisches Gemmologisches Institut SSEF
 
 
Goldor Magazin für Edelmetalle, Schmuck, Uhren und Edelsteine
Portal der Uhren- und Schmuckbranche
 
 
Baselworld
Hong Kong Jewellery & Watch Fair
Sainte-Marie aux Mines
Tucson Gem & Jewelry Show
 
 
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© SGG/SSG 2023

 

Our sponsors for 2023:

 
 
 
 
System Eickhorst
 
 
FAERBER
 
 
FERRARI
 
 
System Eickhorst
 
 
GRS
 
 
GÜBELIN
 
 
SSEF
 
 
Wild & Petsch
 
 
 
 
Christian Dunaigre
 
 
 
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