There are many places where pearls are produced in the world. Natural pearls are mainly produced in the Persian Gulf, Red Sea, South Pacific, Gulf of Mexico, 等. They can be divided into Eastern Pearl, Southern Pearl, Australian Pearl, Southern Ocean Pearl, Black Pearl, Oriental Pearl, 等. Due to pollution, the yield and quality of pearls have dropped sharply. China and Japan are well-known pearl-producing countries. China has a large output of beads and Japanese beads have good quality.
Dongzhu: The white high-quality seawater cultured pearls produced in Japan and other Asian countries are called Dongzhu. Japan is the main source of Dongzhu.
South Pearl (Hepu Pearl): Produced in Hepu, Guangxi, 中国, with good quality, round shape and strong luster.
Australian beads: silver-white sea beads produced in Australia.
South Sea Pearl: 白, ラウンド, and large sea beads produced in the Central and Western Pacific Islands, produced in the Philippines, Myanmar and other Southeast Asian countries.
Black pearl: mainly produced near the equator, in the Polynian Islands, black with green color, metallic luster, also known as Tahitian pearl.
Oriental Pearl: The world’s natural famous pearl, produced in the Persian Gulf, is creamy, 白, milky white and light green.
The classification of pearls is more complicated, and there are four main classification methods:
According to whether it is naturally produced or artificially cultivated, it can be divided into natural pearls and cultured pearls.
Whether it is seawater pearls or freshwater pearls, it can be divided into seawater pearls and freshwater pearls.
According to its cultivation methods, it can be divided into nucleus cultured pearls and seedless cultured pearls.
その色に応じて, it can be divided into white pearl, black pearl and colorful pearl.
Pearls can be cleaned with warm water, and wipe with special sheepskin or pearl cloth for pearls. Do not wipe with paper. Store them separately to prevent damage; if they are severely damaged, they can be soaked in 20% salt water for cleaning; after cleaning, they must be dried naturally , To prevent surface fermentation and maintain proper temperature and humidity; when storing on the counter, the light should not be directly exposed to it, and it should be stored with clean water to keep it moisturized to prevent dehydration and drying.