Cultured pearl is calcium carbonate and a fibrous protein called conchiolin. As the nacre builds up in layers of minute aragonite tablets, it fills the growing pearl sac and eventually forms a pearl. Natural pearls are formed by nature, more or less by chance. On the other hand, cultured pearls are human creations formed by inserting a tissue graft from a donor oyster, upon which a pearl sac forms, and the inner side precipitates calcium carbonate, in the form of nacre or "mother-of-pearl". The most popular and effective method for creating cultured pearls are made from the shells of freshwater river mussels
The Pearl and the Wave The Pearl and the Wave The Pearl and the Wave (French: La Perle et la vague), also known as The Wave and the Pearl, is a painting by the French artist Paul-Jacques-Aimé Baudry created in 1862. The painting shows a nude woman lying on the edge of a rocky sea shore, with her head turned to gaze backward over her shoulder towards the viewer. Waves are breaking in the background. "The Pearl and the Wave" was the subject of contemporary curiosity. The painting was met with praise from art critics for its technique and distinguishing quality. Artist Kenyon Cox described