Oriental Pearls: Natural pearls found in oyster of Perish Gulf or those that look like pearls found there, precisely, they are "natural pearls from one kind of sea-water pearl oysyer called the wing shell."

Sometimes people use this term to designate either any natural saltwater pearls or else more specifically,

any natural saltwater pearl found in the West Asia Are,e.g. in the Red Sea, the Perisan Gulf or the Gulf of Mannar off the west coast of Sir Lanka.

Akoya Pearls: Akoya pearls are originated from the southern coastal region of Japan. It can be considered as the first-class pearl in the pearl world and popular with the people. The akoya oyster is the smallest pearl-producing oyster used in pearl culture today. Akoya pearls are generally fine round, shiny strong colors, mostly pink, silver, yellow and white. Akoya pearls also tend to be small, ranging in size from about 2 to 9 millimeters. White and pink color can present an attractive appearance of typical Akoya pearl. You will find very few flaws in Akoya pearl, and it has a strong, beautiful sheen. From the surface, Akoya pearl almost look the same as the freshwater pearls. Only when comparing them together, differences can be seen obviously. Akoya pearls are more expensive than big freshwater pearls, because of the chief advantages in smooth, rounded, and better luster. If you want to choose a great gift, Akoya pearl absolutely your best choice.

Akoya Pearls are often called Japanese pearls, but they can also be found in oysters outside Japan. In fact, China has become the major product of Akoya pearls less than 7mm in size. Korea, Hong Kong and Sir Lanka are already culturing pearls using the Akoya oyster. Currently, most Akoya pearls over 7mm are cultured in Japan.

South Sea Pearls: A term signifying any saltwater pearl found in the area extending from the Philippines and Indonesia down to Australia and across to French Polynesia. South Sea Pearls tend to range from 9-19mm.

Black pearls:Pearls of natural color (not dyed) from the black lip(Pinctada margaritifera)oyster in the Western to Central Pacific Oceanor from the La Paz pearl oyster (Pinctada mazatlantica)or rainbow–lipped oyster(Pteria sterna)in the Eastern Pacific between Baja California and Peru.