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COMMENTS

CORUNDUM (Ruby , Sapphire)

UNHEAT

  No evidence of heat enhancement.

HEAT

  H 

  Heated by traditional methods no residues present.

  H(f)

   Heat by traditional methods has residues present.

  H(lg)

  Evidence of heat enhancement has been found in this stone.

  Foreign substance (lead glass) have been identified in fissures and/or cavities.

  H(le)

  This stone has been enhanced by heat and light elements (such as beryllium).

  The color is permanent.

 Diffusion

  H(d)

  The stone has been treated by the surface diffusion process.

  The color is thermally enhanced and lie at below the surface.

 

EMERALD

Identification level comments of residues in fissures of emerald.

  None

  Found no traces of oil and/or resin in the fissures of emerald at the time of inspect.

 

  Insignificant

  Insignificant of oil and/or resin in the fissures of emerald at the time of inspect.

 

  Minor

  Minor of oil and/or resin in the fissures of emerald at the time of inspect.

 

  Moderate

  Moderate of oil and /or resin in the fissures of emerald at the time of inspect.

 

  Significant

  Significant of oil and/or resin in the fissures of emerald at the time of inspect.