However, almost all pearls jewelry used for jewelry are cultured by planting a core or nucleus into pearl oysters. The pearls are usually harvested after one year of Akoya, and 2-4 years for Tahitian and South Sea, and 2-7 years for the accounts of freshwater pearls. This process was developed by mariculture Mise and Nishikawa Tatsuhei Tokichi Japan.
The nucleus is generally a polished bead made from shells of freshwater mussels. With a small piece of the mantle from another mollusk to serve as a catalyst for the stock of pearls, which is surgically implanted in the gonad (reproductive organ) of a saltwater mollusk. In the freshwater pearl, a piece of fabric is used in most cases, and inserted into the flesh of the mantle of the mussel host. South Sea and Tahitian pearl oysters, also known as Pinctada maxima and Pinctada margaritifera, which survive the subsequent surgery to remove the pearl has been completed to implement a new core, largest, as part of the same procedure, and then returned to water 2 to 3 years of growth.
Despite common misperception, Mikimoto did not patent the process for the cultivation of pearls and a necklace of freshwater pearls bracelet or production. The cultured pearl jewelry agreed process was developed by a team of scientists from the University of Tokyo between 1907 and 1916. The team was led by Tokichi Nishikawa and Other Tatsuhei. Nishikawa was granted the patent in 1916, and married the daughter of Mikimoto. Mikimoto was able to use Nishikawa's technology. After the patent was published in 1916, the technology is applied immediately the market Akoya pearl oysters in Japan in 1916. Last brother was the first to produce a commercial crop of pearls in Akoya oysters. Mitsubishi's Baron Iwasaki immediate application of the technology of pearl oyster of the South Seas in 1917 in the Philippines and later the grain Buton, and Palau.
The original Japanese cultured pearls, known as Akoya pearls are produced by a species of small pearl oyster, Pinctada fucata martensii, which is not greater than 6.7 mm in size, hence akoya pearls larger than 10 mm in diameter are extremely rare and precious. Today, a hybrid mollusk is used in Japan and China in the production of Akoya pearls. This is a cross between Japanese and Chinese species chemnitzii Pinctada species.
Mitsubishi was the first to produce South Sea cultured pearls - even if it was not until 1928 that the first small commercial harvest pearls successfully produced.
The nucleus is generally a polished bead made from shells of freshwater mussels. With a small piece of the mantle from another mollusk to serve as a catalyst for the stock of pearls, which is surgically implanted in the gonad (reproductive organ) of a saltwater mollusk. In the freshwater pearl, a piece of fabric is used in most cases, and inserted into the flesh of the mantle of the mussel host. South Sea and Tahitian pearl oysters, also known as Pinctada maxima and Pinctada margaritifera, which survive the subsequent surgery to remove the pearl has been completed to implement a new core, largest, as part of the same procedure, and then returned to water 2 to 3 years of growth.
Despite common misperception, Mikimoto did not patent the process for the cultivation of pearls and a necklace of freshwater pearls bracelet or production. The cultured pearl jewelry agreed process was developed by a team of scientists from the University of Tokyo between 1907 and 1916. The team was led by Tokichi Nishikawa and Other Tatsuhei. Nishikawa was granted the patent in 1916, and married the daughter of Mikimoto. Mikimoto was able to use Nishikawa's technology. After the patent was published in 1916, the technology is applied immediately the market Akoya pearl oysters in Japan in 1916. Last brother was the first to produce a commercial crop of pearls in Akoya oysters. Mitsubishi's Baron Iwasaki immediate application of the technology of pearl oyster of the South Seas in 1917 in the Philippines and later the grain Buton, and Palau.
The original Japanese cultured pearls, known as Akoya pearls are produced by a species of small pearl oyster, Pinctada fucata martensii, which is not greater than 6.7 mm in size, hence akoya pearls larger than 10 mm in diameter are extremely rare and precious. Today, a hybrid mollusk is used in Japan and China in the production of Akoya pearls. This is a cross between Japanese and Chinese species chemnitzii Pinctada species.
Mitsubishi was the first to produce South Sea cultured pearls - even if it was not until 1928 that the first small commercial harvest pearls successfully produced.
