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The Pacific Ocean is home to the black-lipped oysters that generate big Tahitian pearls. The ocean waters are warm, and this permits the oysters to develop a lot more substantial than in other areas, therefore creating more substantial pearls. Tahitian oysters are farmed in significant sheltered lagoons that are held cost-free of pollution and overcrowding. H2o temperatures and nutritional levels, as effectively as environmental and biological situations are monitored carefully. These well cared for oysters are accountable for creating the lovely Tahitian Pearls. Tahitian pearl

How a Tahitian pearl is formed

Aragonite, which is a type of calcium carbonate, is secreted by the pearl oyster. This substance coats the within of the oyster shell and produces the "mother-of-pearl" lining. It also forms the layers of the pearl. The oyster can produce aragonite secretions up to 4 times a day with every secretion forming an additional layer. The layers are about 1 micron or 0.001mm thick. Tahitian oyster live for about two years which means they generate up to about two thousand layers; much more than most other pearls. The mild passes through these many microscopic layers and is reflected and refracted to produce a shimmering effect. This shimmering results in magnificent colours which look to travel and shift throughout the pearl. This is portion of what helps make the Tahitian pearl so unique.

Criteria

Pearls are graded based on specified criteria. These are:

o Size - the high-priced pearls are the greater ones. The Robert Wan Pearl is the largest Tahitian Pearl and it measured over 20.92mm or 13/16 of an inch in diameter. Tahitian pearls typically measure between 9mm and 14mm and are considerably bigger than Chinese or Japanese pearls.

o Pearl Thickness - layers surrounding the nucleus.

o Shape - round pearls are the most sought following and can't fluctuate a lot more than 2% from being flawlessly spherical. Tahitian pearls can also be semi-round and semi-baroque.

o Surface Purity - surface area imperfections on the pearl.

o Quality - the luster and the imperfections of the pearl.

o Brilliance - the orient and the luster of the pearl. The orient, which is the shimmering quality of the pearl, is extremely obvious in Tahitian pearls.

Colors

Although tahitian pearls are naturally black, they are very distinctive in their coloration. The pearls highlights can be silver and even gold. The overtones on a Tahitian pearl can be blue, purple and even green. The variations in the colors of the pearls make extremely striking jewelry when mixed with other gemstones and metals.