Ein Besuch bei den Saphirkochern von Chantaburi
Ein Besuch bei den Saphirkochern von Chantaburi. Publis […]
Edelsteine heute: echt, behandelt oder synthetisch?
Edelsteine heute: echt, behandelt oder synthetisch?. Pu […]
Les nouvelles mines d’émeraudes de la Pita (Colombie)
Les nouvelles mines d’émeraudes de la Pita (Colom […]
La certification de diamants de type IIa
La certification de diamants de type IIa. Published in […]
À la poursuite du diamant noir – On the trail of the black diamond
À la poursuite du diamant noir – On the trail of […]
Colour-change garnets from Madagascar: comparison of colorimetric with chemical data
Colour-change garnets from Madagascar: comparison of co […]
Synthetischer Moissanit aus Russland
Synthetischer Moissanit aus Russland. Published in GZ, […]
Synthetic moissanite from Russia
Synthetic moissanite from Russia. Published in Journal […]
Raman spectroscopic applications in gemmology
Raman spectroscopic applications in gemmology. Publishe […]
Emerald treatments: their effects and how to recognize them
Emerald treatments: their effects and how to recognize […]