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 […]
Emerald treatments: their effects and how to recognize them
Emerald treatments: their effects and how to recognize […]
Beobachtungen an hitzebehandeltem Rubin mit künstlicher Rissheilung
Beobachtungen an hitzebehandeltem Rubin mit künstlicher […]
Diamants de type IIa et traitement HPHT: Identification
Diamants de type IIa et traitement HPHT: Identification […]
Identification of gemstone treatments with Raman spectroscopy
Identification of gemstone treatments with Raman spectr […]
SSEF to identify GE POL diamonds
SSEF to identify GE POL diamonds. Published in 2000. Au […]
Recognizing GE POL diamonds at SSEF
Recognizing GE POL diamonds at SSEF. Published in 2000. […]
New spectral evidence for GE POL diamond detection
New spectral evidence for GE POL diamond detection. Pub […]