Synthetic Jewelry

However, new method is created to make new diamond in late 90's. At first, the crystallization chamber is re-designed. It is used to create single Giant Diamond Crystal in one process similar to crystal growth in liquid. Then, a small seed of diamond manufactured by CVD method (that nearly no impurities will be included in the Diamond) is placed into the chamber. The chamber is specially designed to have a temperature difference. In addition to other measures, they are the barriers that prevent excess impurities, mainly ferrous metal, be included in the growing crystal (in fact, these is truly commercial secret and cannot be further elaborated here). In addition, additives are included into the catalysts to further reduce the amount of impurities such as nitrogen and other gases. However, the ultimate solution is the introduction of non-metal catalysts such as compounds of Boron, Calcium, Sodium (It is also a secret and keep to success, so, I cannot further describe here) or others. Therefore, unless the destructive tests are used, the diamond cannot be detected by instrument using physical method.

The Machine can produce one Gaint Synthetic Diamond within a few days of 850,000 lbs/sq inch pressure in high temperature reach 3,000 K.

The Picture in the LEFT is a old model that used in early 90's. However, existing machines are similar although it is computerized, with large chamber and having temperature control facilities and measurement facilties to assist experience.

Perhaps the last method is to identify synthetic diamond from nature one is to test the different response under short-wave UV light or to test the atomic arrangement by using X-ray. Nevertheless, it does necessary to test the diamond in molecular level. It needs expensive instruments and well trained operators. Even it was done, it cannot identify the synthetic diamond from Type IIa and Type IIb diamonds.

The enclosed picture is a diamond that has pass the test in British Lab. This diamond is mixed with other nature diamond and synthetic diamond and be sent from a third parties to the lab for testing. It means that standardized technology cannot identified the synthetic diamond.

Other laboratories has done similar things. It is decided that to send some more synthetic diamond for testing before the diamonda were put into the market by mass production. Obviously, they will be disposed as a nature diamond although it is unbanded (or banded in a minor diamond mine with cooperation of a third party in middle asia).