Freshwater pearls are just that

Natural pearls are found in the pearl oysters, which are found in tropical seas, mostly in Asia. Quite a large number would have to be found to be able to make a matched string, which would explain their greater value.

Freshwater pearls are just that. They are formed in the pearl mussels which are found in many rivers of Asia, Europe and the United States. They, too, can be cultivated in pearl farms, and can be matched or not. It might well be that the pollution in American rivers will have some effect on the occurrence of pearls, as might the depletion of water supplies in some states. In Florida, environmentalists say that a dispute about water with Georgia and Alabama, is about more than water needs for humans or the survival of some endangered species of mussels. The mussels are a vital indicator of the health of the Apalachicola River.

unlike any other gem on the earth.

Natural Silver Jewelry grow naturally in oysters living at sea without the human intervention. When any irritant or a parasite enters inside an oyster or mollusk then the process of natural coating begins with layer upon layer of nacre inside the oyster. But natural pearls are rarely found now-a-days. On the other hand culture pearls are very real and genuine. These cultured pearls are formed with the human help when a nucleus is implanted inside the oyster and then the process of coating begins with layers upon layers of iridescent substance called nacre and it takes about 2-5 years to form a complete pearl depending upon techniques and where it is grown, sea or rivers among other conditions. Reflection and refraction from the translucent layers truly determines the unique luster quality of pearls. The display of iridescence in pearls is result of overlapping of successive layers.

All the pearls found and sold in the market today are cultured pearls, be it fresh water or seawater pearls. Fresh water pearls are generally grown in ponds, lakes or rivers whereas seawater pearls are grown under sea waters. Fresh water pearls are known by fresh water pearls name only and sea water cultured pearls go by different names such as Akoya. Tahitian and South sea water pearls depending upon the bivalve mollusks types producing them. No matter fresh water or sea water pearls, quality and price again depends upon the size, shape, lustre, color and surface etc.MORE:black tahitian pearl earring