Blue Nile Glossary
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  Gemstone Clarity:  
  Because gemstones form under unique circumstances, each individual gemstone is comprised of a combination of trace minerals, which create a unique set of identifying marks or inclusions.

Flawlessness in coloured gemstones is not as sought after as it is in diamonds. Some varieties of coloured gemstones, such as aquamarine, blue topaz, and citrine, have naturally fewer inclusions while other gemstones, such as emerald and ruby, tend to have a higher rate of acceptable inclusions.

See also: Gemstone Clarity.

 

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