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

Gemstone or precious stone?
What is the difference between gemstone and precious stone? Which stones are suitable for jewelry? Which ones for an investment? [...]
Rough gemstones & untreated, natural gems
Rough stones, untreated gemstones, natural gemstones - are they one and the same? [...]
The Colors of Gemstones
The color of a gemstone is not only decisive for its naming, also the value of a gemstone depends strongly on its color. [...]
Birthstones
In der Astrologie und in der Steinheilkunde werden Edelsteine und Mineralien unterschiedlichen Zeiträumen zugeordnet. Grundlage dafür ist die A [...]
On the price of gemstones
The question "How much do gemstones cost?" can certainly be answered, as the price of a gemstone is based on several factors. [...]
Beryl: More than “just” emerald
From the mineral group of beryl, the emerald is probably best known as a green variety. But also other varieties of the beryl group are in demand [...]
Gemstone Treatments: How stones are “enhanced”
Since people became interested in gemstones and found that rare and beautiful things are often expensive, there have been attempts at counterfeit [...]
The ruby – Stone of stones
The ruby has been one of the most highly regarded gemstones since time immemorial. Its name comes from "rubens", which means "red". [...]
