Two-phase inclusions in sapphire, Sri Lanka
Fire opal, Mexico
Midge included in amber from the Baltic coast, polarised light
Natural etching structure on a crystal face of diamond (trigons), polarised light
Bubbles and swirls in moldavite (natural glass)
Dendrites in agate
Partially etched diamond crystal
Inclusions of hematite in feldspar (sunstone), India

Contact

Societé Suisse de Gemmologie
Secrétariat: Rébecca Michelot
c/o BDO AG, Hodlerstrasse 5, 3001 Bern

T. +41 79 668 6989
E. info@gemmologie.ch