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None: Any emerald that has no fissures or does not show indications of having undergone modification through the filling of fissures with oils, resins, wax or any other filler, and will always be mentioned on the report.

EE(O) : Clarity Enhancement/Indication of fissure filling by oil.

  1. Insignificant
  2. Minor

EE(F): : Clarity Enhancement/Indication of fissure and/or cavity Filling.

Any emerald that show indications of having undergone modification through the filling of fissures with color oils and/or colorless resins, wax or any other filler, and will always be mentioned on the report.

  1. Minor
  2. Moderate
  3. Significant

Other possible treatments for Emerald

  1. Coating
    (Evidence of a applying artificial external surface color coating in a thin layer).
  2. Dyeing
    (Evidence of color is modified by dyed or colored substance).
  3. Irradiation
    (use of nuclear bombardment; produced by irradiation, the process of which is usually stable)