The beauty of gems comes first in color. Derudover, transparency and luster are all its charms. Transparency refers to the ability of a gemstone to transmit light. Usually divided into: gennemsigtig, gennemskinnelig, gennemskinnelig, gennemskinnelig, uigennemsigtig. Gennemsigtighed: easy to see through the light, clear bottom, the outline and details of the scene can be clearly [...]
