smoky quartz

Smoky quartz is a transparent fine stone belonging to the quartz species. It is dark brown to black in color. Its color is due to the natural irradiation of the aluminum impurities it contains. This irradiation can also be artificially reproduced in the laboratory. Read the article!

Get to know fine and precious stones

Rarity and demand are, as in many areas, the reasons that greatly influence the value of a stone, but it is the color, cut, clarity and carat that determine its quality. Read the article!