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The definition of a gemstones, its origin and methods of refinement, if such has been applied, is one of the main objectives of Gemological expertise by expert Gemological laboratories ...

As is known, the motivation of consumers is an important aspect that is of particular importance for the prospects of market development, diamond products are most often purchased on the occasion of significant events and celebrations as gifts. One ...

As is known, the motivation of consumers is an important aspect that is of particular importance for the prospects of market development, diamond products are most often purchased on the occasion of significant events and celebrations as gifts. One ...

The definition of authenticity, including tributaria, jewelry is a highly demanded field of expertise associated with expertise of the jewelry. Very relevant these types of activities when making secured transactions or sale-purchase jewelry in the ...

During one of the diagnostic examinations in our laboratory, the study of jewelry inserts in jewelry imitating black diamond, identified a variety of boron carbide a black color ...