Blue Nile Glossary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Index
 
 
  Inclusion:  
  A trace mineral, fracture, or other imperfection that contributes to the unique fingerprint of a gemstone. All but the rarest gemstones contain inclusions, which are created during the gemstones' formation in the earth.

See also: Diamond Clarity, Gemstone Clarity, Diamond Characteristics.

 

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