Heating and diffusion processes on rubies: characteristics, detection and declaration
Author(s) : -
Date : 2010
Talk on ruby treatments and terminology during CIBJO Ruby Day in Munich in February 2010.
Author(s): M.S. Krzemnicki
Tag : Disclosure
Orange treated sapphire: towards finding a name for a new product
Author(s) : -
Date : 2002
Orange treated sapphire: towards finding a name for a new product. Published in GAHK Journal, 2002.
Author(s): H.A. Haenni
À la poursuite du diamant noir – On the trail of the black diamond
Author(s) : -
Date : 2001
À la poursuite du diamant noir – On the trail of the black diamond. Published in 2001.
Émeraudes synthétiques hydrothermales Agee – Hydrothermal-synthetische Smaragde von Agee
Author(s) : -
Date : 1994
Émeraudes synthétiques hydrothermales Agee – Hydrothermal-synthetische Smaragde von Agee. Published in 1994.
Author(s): H.A. Haenni, L. Kiefert, J.-P. Chalain