Knowledge
Our knowledge section provides important background information on gemstones in general, investments and gemmology.

GEMSTONES: A SPECULATIVE INVESTMENT?
Which stones are suitable as a long-term investment option without speculative character? [...]
DISPERSION OF PRECIOUS STONES
Dispersion gives gemstones an extraordinary sparkle in rainbow colors. Learn everything about the so-called "fire" of jewels in this article. [...]
THE MEANING OF GEMSTONES – HOW THEY WORK AND WHAT THEY HEAL
Each gemstone has a special meaning and, according to stone healing science, a healing effect on body and mind. Learn more about healing stones h [...]
Have gemstones appraised
Do you want to have your gemstones appraised? In this article you will learn how to determine the value of gemstones and who makes a serious appr [...]
Where to buy gemstones?
Learn where to buy gemstones and which supplier is suitable for your needs. [...]
Cultures and Gems – Mayas, Aztecs and Incas
Learn which gemstones the Aztecs, Maya and Inca particularly valued & how they were used in the daily lives of Native Americans. [...]
The most expensive and valuable gemstones in the world
Gemstones are extremely popular as jewelry, collectibles or investments. We present you the most valuable and most expensive sold gemstones in t [...]
Gemstones and Cultures – India
In India, the trade and wearing of gemstones as jewelry have been part of and inseparable from the culture for thousands of years. [...]