| Treatment |
|
|---|---|
| N |
Not Enhanced, No Treatments: No modification |
| ASBL | Assembled |
| B |
Bleaching |
| C |
Coating |
| D |
Dyeing |
| F |
Filling: The filling of surface-breaking cavities or fissures with colorless glass, plastic, solidified borax or similar substances. This process may improve durability and/or appearance, and/or to add weight. |
| H |
Heating: The use of heat to effect desired alteration of color, clarity and/or phenomena. If residue of foreign substances in open fissures is visible under properly illuminated 10X magnification, H F should be used. |
| HP |
Heating and Pressure: The use of heat and pressure combined to effect desired alterations of color, clarity and/or phenomena. |
| I |
Impregnation: The impregnation of a porous gemstone with a colorless agent (usually plastic) to improve durability and appearance. |
| L |
Lasering: The use of a laser and chemicals to reach and alter inclusions in gemstones, usually diamonds. |
| O |
Oiling/Resin Infusion: The filling of surface-breaking fissures with colorless oil, wax, resin or other colorless substances, except glass or plastic, to improve the gemstone’s appearance. |
| SYN | Synthetisch |
| R |
Irradiation: The use of neutrons, gamma rays or beta particles (high energy electrons) to alter a gemstone’s color. The irradiation may be followed by a heating process. |
| W |
Waxing Oiling |
| U |
Diffusion: The use of chemicals in conjunction with high temperatures to produce ARTIFICIAL color change and/or asterism-producing inclusions. |
General explanations
- The size of the gemstones may vary +/- 0.1 mm from the information.- Slight color differences within a product group could occur
- Color deviations can occur due to the different monitor displays. The color on the monitor may affect and/or distort the actual color of the stone.
- Different shapes might affect the color.