- GRADING SYSTEM
- Enhancement Disclosure
Enhancement Disclosure
Enhancement Disclosure
Ruby and Sapphires
No indication of Thermal treatment: No altered inclusion are present that would indication that heat enhancement process was applied.
HT: Enhanced by heat (no residues present in Fissures and Cavities)
HT (1): Enhanced by heat and insignificant residues (very small residues possible within fissures only)
HT (2): Enhanced by heat and minor residues (within fissures only)
HT (3): Enhanced by heat and moderate residues and present (moderate within fissures and minor to moderate in cavities)
HT (4): Enhanced by heat and significant residues present (significant within fissures and cavities)
HT(Pb): Lead-rich vitreous residues (in fissures and /or cavities)
HT(Be): There is indication of heating. Color is modified /altered by the introduction of chemical element from an external source for e.g., Beryllium.
CEE (O): Grading of Clarity Enhancement of Emeralds are specified as:
- None
- Insignificant
- Minor
- Moderate (filler mentioned if resin)
- Significant (filler mentioned if resin)