In recent decades, technologies for the artificial cultivation of precious stones and their analogues have been actively developing. Of course, most of all, manufacturers, jewelers, and buyers are interested in the possibilities of producing the king of precious stones - diamond, which is due to its price. The high price of natural diamonds is associated, first of all, with their properties, such as phenomenal hardness, excellent ability to refract and return light, which ensures the sparkle and play of a cut diamond. But there is another important factor - significant monopolization and closure of the diamond mining market, which does not allow the price of stones to fall according to the natural market laws of competition.

Recently, laboratories have developed several technologies for growing synthetic diamond, the most common two of them:

1. In a chamber at high pressure (50-60 kilobars) and temperature (about 1400-1600 degrees Celsius), which has the abbreviation HPHT (High Pressure, High Temperature), growing an artificial diamond of about 1 carat using this technology takes about 5 days.
2. Chemical deposition (CVD). The most popular variation of this process is microwave plasma vapor deposition (MPCVD), using a mixture of methane and hydrogen gases as the starting material.