MRI Lab

💎 MRI Lab Gemstone Treatment Explanations

This guide provides explanations for the treatment codes and comments found in MRI Lab reports regarding gemstones and jewelry.

### General Gemstone Treatments

Comment/Code	Explanation
Untreated	No indication of any treatment.
Unheated	No indication of Heating.
Heated	Enhanced by Heat (no residue present).
H(a)	Enhanced by Heat with solid Flux residue present in fissures.
H(a)\*	Enhanced by Heat with solid Flux and glass residue present in fissure.
H(c)	Enhanced by Heat with lead glass, bismuth, etc. filling.
H(c) - Dyed	Enhanced by Heat with lead glass + infused with coloring agent.
H(Be) – Beryllium	Enhanced by Heat and light elements such as beryllium (Lattice Diffusion).
Diffusion	Enhanced by heat with chemicals to enhance color (Surface Diffusion).
Dyed	Underwent dyeing treatment to enhance color.
Coating	Undergone a surface coating treatment to enhance color.
IMP-Acceptable	Impregnated with a polymer or resin to improve clarity, stability, and durability.
Doublet/Triplet	Assembled stone fused together (composed of two/three parts).
None – IRR Common	Irradiation process is commonly used and commonly acceptable.
H - Acceptable	Heating process is commonly used and commonly acceptable.
None - Treatment Undetectable	Treatment is underterminable (cannot be conclusively identified).

--- ### Emerald Clarity Enhancement (Ce)

Ce refers to Clarity Enhancement in emerald by filling surface-reaching fractures with oil or resin to improve clarity.

### Jadeite Jade Treatment Types