Manta rose pearls belong to the advanced category. Manta rose pearl is a kind of natural pearl with beautiful color, rare varieties, high requirements for growth environment and unique color, which belongs to the top pearl level. Pearl, also known as mussel pearl and lotus pearl, is an ancient organic gem, which is mainly produced in mollusks such as Pinctada and Pinctada. Pearl is a mineral bead containing calcium carbonate produced by the endocrine function of shellfish, which is composed of a large number of tiny aragonite crystals. Rich varieties, different shapes and colorful. There are two kinds of pearls: freshwater pearls and seawater pearls. The main aquaculture areas of freshwater pearls in China are Zhuji, Changde, Suzhou and Jiangxi. There are five kinds of pearls: white, red, yellow, black and variegated, and most of them are opaque.