DCA Gemology Practice Test

Natural saltwater pearls come from pearl oysters living in marine waters, and the region most strongly linked to historic natural pearl production is the Persian Gulf. The warm, calm seas around the Gulf supported large beds of pearl oysters, making it the classic source of natural saltwater pearls and driving famous pearling traditions in places like Bahrain and the surrounding areas. While other seas, such as the Red Sea, also have pearl oysters, the Persian Gulf is the name most associated with natural saltwater pearl sources in gemology history. Therefore, the Persian Gulf is the best answer.