Knowledge
Our knowledge section provides important background information on gemstones in general, investments and gemmology.
Is now a good time to invest in gemstones?
How to determine the optimal time to invest, or to put it more simply: Is now a good time to invest in gemstones? [...]
The mining of gemstones
The way gemstones are mined differs, depending on the type of deposit. [...]
Gemstones from Germany
The most important gemstone deposits in Germany are already largely exhausted, but hobby collectors still get their money's worth at some sites. [...]
Gemstones from Austria
Gemstones can be found in Austria's mountains if you know where to look. [...]
Trading Names of Gemstones
Gemstones are not only known by their mineralogically correct names. In addition to obsolete names and synonyms, there are also trading names tha [...]
The Kimberley Process – stopping the trade of blood diamonds
Certificates of origin that prove where diamonds come from and that no conflicts or civil war parties have been financed by their sale – that i [...]
Star Sapphire & Star Ruby
How are star sapphires and star rubies formed and what makes them so valuable? [...]
Clarity, Color Quality & Fluorescence of Gemstones
What is the role of clarity, color quality, and the phenomenon of fluorescence in determining the value of gemstones? [...]
