ItItFrFrDeDe
Schweizerische Gemmologische Gesellschaft
  • Gemmology
    • Knowledge
    • Diamonds
    • Terminology
    • The 4 C's
    • Precious stones
    • Colours
    • Pearls
    • Cultured pearls
    • Treatments
  • About us
    • History
    • Commitee
    • Objective
    • Become a member
  • Current
  • Links
Natural etching structure on a crystal face of diamond (trigons), polarised light
Midge included in amber from the Baltic coast, polarised light
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
«Red fox agate» from Patagonia, Argentina
Agate from Anzi, Maroc
Two-phase inclusions in sapphire, Sri Lanka
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia

Sitemap

  • Gemmology
    • Knowledge
    • Diamonds
    • Terminology
    • The 4 C's
    • Precious stones
    • Colours
    • Pearls
    • Cultured pearls
    • Treatments
  • About us
    • History
    • Commitee
    • Objective
    • Become a member
  • Current
  • Links
  • Become a member
  • Contact
  • Internal
  • Print page
 
 
 
  • Become a member
  • Contact
  • Internal
  • Print page

Sitemap
Imprint
Data protection
Conditions of use

© SGG/SSG 2020

 

Our sponsors for 2020:

 
 
 
 
System Eickhorst
 
 
FAERBER
 
 
FERRARI
 
 
System Eickhorst
 
 
GRS
 
 
GÜBELIN
 
 
SSEF
 
 
Wild & Petsch
 
 
 
 
Christian Dunaigre
 
 
 
  • Become a member
  • Contact
  • Internal
  • Print page