1. Different cultivation places: both nucleated pearls and seedless pearls are the result of artificial cultivation in different environments. The nucleated pearls are cultured in seawater, and the seedless pearls are cultured in fresh water.
2. Different breeding methods: nucleated pearls are naturally grown by organisms because of this manual intervention procedure.
3. Different thickness and glossiness: The glossiness of nucleated pearls is better, but the pearl wall is thinner. The luster of seedless pearls is not as good as that of nucleated pearls, but the pearl wall is thicker than that of nucleated pearls.
4. Different sizes: In addition, there are differences between nucleated pearls and seedless pearls. The size of nucleated pearls is generally between 6 ~ 15mm, and that of seedless pearls is between 1 ~ 12mm, and seedless pearls larger than 12mm are very rare.
Pearl introduction
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 in variety, different in shape and colorful.
According to the research of geology and archaeology, there were pearls on the earth 200 million years ago. Pearl has been used as medicine in China for more than 2000 years. In the international gem circle, pearls are also listed as lucky stones for June birthdays and commemorative stones for 13 and 30th wedding anniversaries. Pearls with magnificent colors and elegant temperament symbolize health, purity, wealth and happiness, and have been loved by people since ancient times.