Knowledge
Our knowledge section provides important background information on gemstones in general, investments and gemmology.
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. [...]
Gemstones as medium-term investments
What makes gemstones attractive as an addition to an investment portfolio? [...]
What does a gemologist do?
Gemology is the science of gemstones, therefore a gemologist is an expert in gemology. [...]
Buying gemstones on vacation
Rubies from a vacation in India, sapphires from Sri Lanka or lapis lazuli from Turkey - many gemstone and jewelry lovers like to buy gemstones or [...]
Heat Treatment of Gemstones
Why are gemstones heat treated and which gems are "improved" that way? [...]
