Knowledge
Our knowledge section provides important background information on gemstones in general, investments and gemmology.
Diamond Price: How the value of diamonds is calculated.
The value of a diamond is essentially determined by the 4 C's: color, cut, clarity and carat. [...]
How to sell gemstones
If you are interested in investment gemstones, you will sooner or later deal with the question of how to sell your stones again. [...]
The Garnet Group
Garnet" denotes a group of minerals. We provide an overview of the most important colors and discuss which ones are interesting for an investment [...]
Storing investment gems properly
Anyone who invests in gemstones must also think about storage. The costs of storage as well as the safety of the valuable stones must be consider [...]
Sapphire varieties – more than just blue
The best-known varieties are pink, orange, yellow and white sapphires, but there are also bi-color, color-change and star sapphires. [...]
Pigeon Blood, Royal Blue & Padparadscha – Special Color Shades in Gemstones
Gemstones come not only in different colors, but also in a variety of shades. Some are more sought after and thereful more valuable than others d [...]
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? [...]
