The value of crystal and pearls depend on their purity. If it is a pearl, it is generally above 8mm, which can be called jewelry. If it is perfect, round and flawless, it is the first-class product among treasures. The larger the diameter, the higher the value. The value of seawater pearls is higher than that of freshwater cultured pearls. If the seawater exceeds 10mm, it costs 10,000 yuan at the counter. I make pearls in an online shop.