noun
cultured pearl
A pearl produced by human intervention, as opposed to a natural pearl (天然真珠). Common in jewelry and pearl industry contexts.
このネックレスには養殖真珠が使われています。
Cultured pearls are used in this necklace.
天然真珠 is a natural pearl formed without human intervention, while 養殖真珠 is cultivated by inserting a nucleus into the oyster.
Compound of 養殖 (cultivation, farming) and 真珠 (pearl).