DGL is an international gemstone testing laboratory specialized in identifying and characterizing high quality gemstones as natural, synthetic and as treated gemstone.
DGL determines origin and it is more reliable when a gemstone has a great number of characteristics properties such as inclusions, growth structure and physical and chemical properties. A gemstone value is primarily based o its color and therefore DGL is also specialized in color grading of gemstones. DGl utilize high quality advance instruments for its testing and tested by a qualified gemologist.