Pearls are an important part of the jewelry market. Japan is the place where artificial cultured pearls were invented and the main producing area of jewellery culture. Japanese cultured pearls, also known as Akoya pearls, are named after the shellfish from which they cultured pearls. This kind of Akoya pearl is also seawater pearl, but this kind of shellfish is very different from the shellfish of South Sea pearl. Its size is small, and its mature size is about 7 cm. したがって, the size of Japanese beads is from 2 cm to 9 cm. , There are also more than 9 cm, but the output is low.
The color of Japanese beads is mainly white, usually with pink or yellowish overtone. その中で, pink is more valuable.
The best harvest time for Japanese pearls is in the driest months of each winter, when the shellfish are resting and can get a better pearl luster. 一般的に言えば, the cultivation of Japanese pearls takes one year to one and a half years after the nucleus is implanted to the harvest. The rejection rate of shellfish is about 15% に 20%, and the best quality pearls are only It accounts for 10% of all production, which is why the price of a string of pearls with excellent color and gloss is so high!
Some of the Japanese pearls currently on the market are not actually cultivated in Japan. 近年では, Akoya pearls have also been cultivated along the coast of Northeast China and the Shandong Peninsula. The original quality is not as good as that of Japanese pearls, but in recent years there has been a trend of catching up. The overall quality of Japanese pearls produced in China is not as good as those produced in Japan.
現在のところ, high-quality Japanese pearls, as its name suggests, are produced in Japan. In addition to China’s northeast coast, other regions also have a certain amount of production in northwestern Australia and India.