Phoenix jewelry is quite good, and the quality is very good. Natural gemstones have "ten Hong Jiu cracks", and natural rubies without any flaws and cracks are extremely rare. Artificial rubies have the same color, few internal defects or crystal inclusions, and are clean and large. As a precious gem, natural rubies over 3 carats are very rare in the market. If you encounter a larger ruby, you should pay attention, because the value of natural ruby is thousands of times that of artificial ruby, and you will be deceived if you are slightly negligent.

Natural ruby has a strong "dichroism". The so-called dichroism means that there are two colors of red and orange red from different directions. If there is only one color, it may be red spinel, garnet or red glass.