Fake pearls made from Tridacna gigas shells
Author(s) : -
Date : 2017
Fake pearls made from Tridacna gigas shells. Published in Journal of Gemmology, 2017, 35, 5, 424-429.
Author(s): M.S. Krzemnicki, L.E. Cartier
Download PDF
Tag : Imitations
Diamond testers with a limited performance
Author(s) : -
Date : 2017
Diamond testers with a limited performance. Published in Journal of Gemmological Association of Hong Kong GAHK, 2017, 38, 37-39.
Author(s): H.A. Haenni
Modern Doublets from Germany and India
Author(s) : -
Date : 2015
Tags : Doublets / Imitations
Modern Doublets from Germany and India. Published in Journal of Gemmology, 2015, 34, 6, 479-481.
Author(s): H.A. Haenni, U. Henn
Some uncommon sapphire “imitations”: Blue Co-zirconia, kyanite and blue dumortierite
Author(s) : -
Date : 2013
Some uncommon sapphire “imitations”: Blue Co-zirconia, kyanite and blue dumortierite. Published in Journal of the Gemmological Association of Hong Kong GAHK, 34, 62-64
Author(s): M.S. Krzemnicki
Update on Moissanite identification
Author(s) : -
Date : 2000
Tags : Imitations / Moissanite
Update on Moissanite identification. Published in GAHK Journal, 2000.
Author(s): J.-P. Chalain
Zircon ou zirconia à ne pas confondre
Author(s) : -
Date : 1989
Zircon ou zirconia à ne pas confondre. Published in Journal Suisse d’horlogerie et de bijouterie, 1989.
Author(s): H.A. Haenni
Zirconia is not zircon
Author(s) : -
Date : 1989
Zirconia is not zircon. Published in Swiss watch and jewelry journal, 1989.
Author(s): H.A. Haenni