Dongzhu is mainly produced in Songhua River, Heilongjiang River, Wusuli River, Yalu River and other watersheds, and its growth environment is very harsh. Also because of the growth environment of Dongzhu, its texture is huge and full, round and crystal, and Dongzhu is difficult to harvest, thus highlighting the preciousness of Dongzhu.
Dongzhu is produced in Heilongjiang in northeast China. It is mainly distributed in Songhua River, Heilongjiang River, Wusuli River, Yalu River and other basins, and its growth environment is very harsh. Because Dongzhu grows in a relatively cold environment, and its output is rare, it is difficult to find rare treasures in a hundred years, so the collection and catching of Dongzhu is very difficult.
The East Pearl is affected by its environment, so its texture is large and full, round and crystal-clear. Moreover, the East Pearl has a thin pearl layer, a high refractive index, and a refractive color. Therefore, the East Pearl exudes dazzling and bright brilliance, showing nobility and luxury.
Since the Han Dynasty, there have been clear records of the East Pearl. In the Jin, Yuan, and Ming dynasties, the records of the East Pearl are endless in the annals of history. In the Qing Dynasty, the East Pearl has become the exclusive treasure of the imperial court. No one is allowed to take it unless it is ordered. In addition, the collection and fishing environment of the East Pearl is too poor, which highlights the preciousness of the East Pearl.