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Такой ювелирно-поделочный материал как авантюриновый кварц широко известен в России уже с конца XVIII века, однако разработка месторождения на горе Таганай (Южный Урал) начата только в начале XIX века.

Conducting a gemological examination does not necessarily require removing the stone from the jewelry. Expert evaluation can be carried out for both loose stones and those already fixed in the jewelry. However, it is necessary to take into account a number of factors that can affect the accuracy and completeness of the study.

The first gem-quality synthetic diamonds were grown in the early 1970s, but industrial commercial production was still many years away. A few synthetic diamond cuts began to appear on the jewelry market in the late 1980s. Less than a decade later, these stones became a real scourge for both natural stone producers and gemologists.

Typically, CVD diamonds contain graphite inclusions in the form of “flakes” or “lumps”, but the inclusions we observed were colorless inclusions with angular (for smaller inclusions) and rounded (for larger ones) outlines.

Currently, for the production of jewelry inserts, diamond synthesis is carried out using two main synthesis methods