Edison pearls are a category of cultured freshwater pearls that are known for their exceptional size, shape, colour and luster. These pearls are named after Thomas Edison, who is often credited with improving pearl cultivation techniques, although he was not directly responsible for the creation of Edison pearls themselves. 

The term “Edison pearl” was coined to represent a specific type of freshwater cultured pearl that was first introduced by Chinese pearl farmers in the early 21st century.