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

Cultures and Gems – Mayas, Aztecs and Incas
Learn which gemstones the Aztecs, Maya and Incas particularly valued & how they were used in the daily life 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. [...]
The history of gemstones
From Neanderthal to Modern times - the history of man and gemstone is long. [...]
Gemstone identification
Each type of gemstone has unique physical & optical properties. With the necessary equipment & expertise, each stone can be clearly identified. [...]
The most common settings for gemstone jewelry
What are the most common settings for gemstones in jewelry, especially rings? A brief overview of the main shapes. [...]
Inclusions in gemstones
Gemstone inclusions consist of material that has been trapped during the formation of a mineral. Inclusions affect the value, but can help determ [...]
Insurance for your gemstones
Whoever acquires gemstones and wants them to be secured, cannot avoid gemstone insurance. [...]
