Natural sapphires tend to be uneven in color, and most have flat growth patterns. The artificial sapphire has the same color, and its growth pattern is a curved belt, which often shows crumb-like or bead-like bubbles in the body. Natural sapphire also has a distinct dichroism, which is blue in one direction and blue-green in the other. The coloration of other gemstones is different from that of natural sapphires and can be distinguished accordingly. In addition, the easiest method is to use the hardness method. Natural sapphire can mark the topaz, while other blue stones are difficult to mark on the topaz. Therefore, when buying jewelry, if there is no instrument around, just have a piece of topaz. Sometimes it can solve some problems. What is the difference between the natural green of jade and the dyed green? The reason why natural jade has green, white and purple is that the crystal grains that make up the jade are green, white and purple. So when we look at the color of a natural jade, its color and crystal are inseparable. The dyed jade, its original crystal is colorless, and the dye that enters the jade through the dye is along the crystal. Intergranular voids or some fine cracks infiltrate, so there is a clear boundary between color and crystal. Bedspread Sets,Cotton Bedspreads,Quilted Bedspreads,Bedspreads And Comforters changxing sanxing textile co.,ltd , https://www.sxhometextile.com