noun - A pearl diver or ama in Japanese are Japanese divers who collect pearls as a livelihood.
Japanese tradition holds that the practice of ama may be 2,000 years old. Even in modern times, ama dive without scuba gear or air tanks, making them a traditional sort of free-diver. Depending on the region, ama may dive with masks, fins, and torso-covering wetsuits. Only divers who work for tourist attractions use white, partially transparent suits.
Ama are famous for pearl diving, but originally they dived for food like seaweed, shellfish, lobsters, octopus, and sea urchins — and oysters which sometimes have pearls.
Pearl diving is the act of recovering pearls from oysters in the sea. Pearl hunting used a major industry in the Persian Gulf region and Japan.