Because rock crystal's resources are much richer than other gemstones, synthetic crystals are mainly used to meet the needs of telecommunications, optics and other industries, so it is not economical to use synthetic crystals as gemstones. However, with the decrease of natural resources and the improvement of synthetic technology, synthetic crystals are now widely used in jewelry.

At present, the main method to distinguish synthetic crystals from rock crystals lies in their internal inclusions, which can also be measured by some simple instruments such as absorption spectrum. In addition, if you see blue or green crystals, you can usually judge that they are synthetic, because these two colors of crystals can hardly be found in nature.