Swarovski crystals are generally cultivated crystals and artificial crystals, which look brighter and have no impurities. But after all, it is not crystal stone, so it is cheaper than crystal stone in value. The hardness of rock crystal is 7, and there are naturally formed cotton wool and ice cracks in the crystal. The less cotton wool and ice crack, the more expensive it is. Crystals also have the property of naturally forming magnetic fields. It has been scientifically proved. Such a magnetic field is good for human body, but there is no magnetic field for cultivating crystals and artificial crystals. There are many kinds of crystals, some of which cannot be imitated by human beings. Buying rock crystal is nice and valuable, beautiful and mysterious.