Pearls are cultured by transplanting a tiny piece
of mantle tissue of an oyster shell into a the shell of a young oyster.
This graft forms a pearl sac and precipitate calcium carbonate into this
pocket. Over time, this grows into a pearl. It takes 2 to 5 years for a
pearl to mature.Cultivation of pearls is very time-consuming process,
explains Jacques Branellec, managing director of Jewelmer. Any change in
temperature and water conditions can affect the oysters.
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