Przykłady jednojęzyczne (niezredagowane i niesprawdzone przez PONS)
angielski
The other earring was discovered to contain a cultured pearl, which means it had been produced by an oyster farmer in controlled conditions and is not as valuable.
Both cultured pearls and natural pearls can be obtained from pearl oysters, though other molluscs, such as the freshwater mussels, also yield pearls of commercial value.
Before the creation of cultured pearls in the early 1900s, natural pearls were so rare and expensive that they were reserved almost exclusively for the noble and very rich.
During this time he experimented with culturing pearls; his experiments were successful, and modern-day spherical cultured pearls are primarily the result of discoveries he made.
Today, their labour of love, the seafarm, relates the story of paua pearls, considered the most lustrous and one of the rarest cultured pearls in the world.
