The Beauty of Black Tahitian Pearls - 0 views

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  #1 Dana Rocha on 24 Mar 12

   

  Natural pearls are those which nature has formed by itself. The irritant has gotten into the oyster through some crevasse or small opening and irritated the oyster to form the nacre covering.
  
  A cultivated pearl is made by the deliberate insertion of a foreign substance, often another piece of shell, to the oyster and then nurturing it for a number of years until a pearl is made.
  
  Whereas the natural pearl can be many different shapes and sizes and even colors, the cultivated pearl tends to be round or spherical in shape although coloring can be added to ensure the pearl is of a particular hue or color.
  
  The discovery of how to make cultivated pearls changed the pearl industry for all time. Pearls became available to most people and not just to the select few due to their rarity.
  
  This boosted the industry to a multi million dollar enterprise that flourishes around the world today.
  
  Cultured pearls can be made virtually if not completely flawless and the oyster, during the pearl making process, is monitored and cared for in order to enable it to produce the best cultivated pearls.
  
  Ti can also be done in bulk and this also brings the price for cultivated pearls down to an affordable price and pearls became accessible to large numbers of people around the world.
  
  The advent of cultured pearls took most of the risk, and guesswork out of the pearl industry, allowing it to become stable and predictable, and fostering its rapid growth over the past 100 years. Today the cultured pearl industry has effectively replaced the natural pearl industry, turning the natural gems of old into collectors' pieces.
  
  Apart from the obvious color, size and shape of natural pearls as against cultivated you can also tell the difference using x-rays to reveal the nucleus of the pearl.
  
  End of Part 1 of a 3 part series on Freshwater Cultivated Black Pearls.
  
  The Pacific Ocean is home to the black-lipped oysters that produce large Tahitian pearls. The ocean waters are warm, and this allows the oysters to grow much larger than in other areas, thus producing larger pearls. Tahitian oysters are farmed in large sheltered lagoons that are kept free of pollution and overcrowding. Water temperatures and nutritional levels, as well as environmental and biological conditions are monitored carefully. These well cared for oysters are responsible for producing the beautiful Tahitian Pearls.
  
  How a Tahitian pearl is formed
  
  Aragonite, which is a form of calcium carbonate, is secreted by the pearl oyster. This substance coats the inside 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 four times a day with each secretion forming another layer. The layers are about one micron or 0.001mm thick. Tahitian oyster live for about two years which means they produce up to about two thousand layers; more than most other pearls. The light passes through these multiple microscopic layers and is reflected and refracted to produce a shimmering effect. This shimmering creates magnificent colors which seem to travel and move throughout the pearl. This is part of what makes the Tahitian pearl so unique.
  
  Criteria
  
  Pearls are graded based on certain criteria. black pearls

   

  <div class="cArrow"> </div><div class="cContentInner">Natural pearls are those which nature has formed by itself. The irritant has gotten into the oyster through some crevasse or small opening and irritated the oyster to form the nacre covering.<br /><br />A cultivated pearl is made by the deliberate insertion of a foreign substance, often another piece of shell, to the oyster and then nurturing it for a number of years until a pearl is made.<br /><br />Whereas the natural pearl can be many different shapes and sizes and even colors, the cultivated pearl tends to be round or spherical in shape although coloring can be added to ensure the pearl is of a particular hue or color.<br /><br />The discovery of how to make cultivated pearls changed the pearl industry for all time. Pearls became available to most people and not just to the select few due to their rarity.<br /><br />This boosted the industry to a multi million dollar enterprise that flourishes around the world today.<br /><br />Cultured pearls can be made virtually if not completely flawless and the oyster, during the pearl making process, is monitored and cared for in order to enable it to produce the best cultivated pearls.<br /><br />Ti can also be done in bulk and this also brings the price for cultivated pearls down to an affordable price and pearls became accessible to large numbers of people around the world.<br /><br />The advent of cultured pearls took most of the risk, and guesswork out of the pearl industry, allowing it to become stable and predictable, and fostering its rapid growth over the past 100 years. Today the cultured pearl industry has effectively replaced the natural pearl industry, turning the natural gems of old into collectors' pieces.<br /><br />Apart from the obvious color, size and shape of natural pearls as against cultivated you can also tell the difference using x-rays to reveal the nucleus of the pearl.<br /><br />End of Part 1 of a 3 part series on Freshwater Cultivated Black Pearls.<br /> <br />The Pacific Ocean is home to the black-lipped oysters that produce large Tahitian pearls. The ocean waters are warm, and this allows the oysters to grow much larger than in other areas, thus producing larger pearls. Tahitian oysters are farmed in large sheltered lagoons that are kept free of pollution and overcrowding. Water temperatures and nutritional levels, as well as environmental and biological conditions are monitored carefully. These well cared for oysters are responsible for producing the beautiful Tahitian Pearls.<br /><br />How a Tahitian pearl is formed<br /><br />Aragonite, which is a form of calcium carbonate, is secreted by the pearl oyster. This substance coats the inside 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 four times a day with each secretion forming another layer. The layers are about one micron or 0.001mm thick. Tahitian oyster live for about two years which means they produce up to about two thousand layers; more than most other pearls. The light passes through these multiple microscopic layers and is reflected and refracted to produce a shimmering effect. This shimmering creates magnificent colors which seem to travel and move throughout the pearl. This is part of what makes the Tahitian pearl so unique.<br /><br />Criteria<br /><br />Pearls are graded based on certain criteria. <a href="http://tahitianblack.com/" rel="nofollow">black pearls</a></div>

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