Iranian Pearl Ruby Women Wedding Fashion Jewelry 51

Iranian Pearl Ruby Women Wedding Fashion Jewelry. 

By Aamir Mannan.

Tahitian Pearls form in the "Black Lipped" oyster Pinctada margaritifera, almost twice the size of the Japanese Akoya oyster. This warm water species naturally ranges across the central and south Pacific, but its main homes are in the great atolls of French Polynesia. Tahitian cultured pearl farmers generally raise their oysters from young, in specially designated areas, in the lagoons in which they'd normally live. As with all pearl oysters, only those that have reached maturity are nucleated. Tahitian pearls take 2 to 3 years to form.

Tahitian Pearl Harvesting

Compared to harvests at Akoya pearl farms, harvests at Tahitian pearl farms are much smaller, simply because the oysters used to grow them are far less plentiful. Tahitian pearls generally develop a nacre coating 2 to 3 millimeters thick.

Though the survival rate of nucleated Tahitian pearl oysters is low, some may be nucleated up to 4 times, the last time being to produce a "mabe" pearl -- a half-spherical cultured pearl grown on the inside shell of an oyster rather than within its body.Technicians take great care not to damage the oysters when removing pearls. If, after extracting a pearl, a technician determines the oyster is healthy, he or she will immediately insert another nucleus to produce another pearl.