| Some of treatment procedures are | | | | inclusions. So we can concluded that |
| centuries old, while others are | | | | colored oils are used on those gemstone |
| relatively new. Gemstone are treated in | | | | to improve their appearances. This |
| different ways to improve their | | | | treatment reduces fractures and provide |
| appearance. Some of these procedures are | | | | better clarity. Heat treatment is |
| centuries old, while others are | | | | the most common form and famous |
| relatively new. Also, by cutting or | | | | enhancement. This is so common with |
| polishing gemstone could have fabulous | | | | corundum, ruby and sapphire, it is |
| colors and nice sparkle. Treatment or | | | | recommended that jewelers inform their |
| enhancement gemstones means any process | | | | customers that they are "probably heat |
| to make natural gems improved gem's | | | | treated". Heating can cause color of a |
| color, clarity before cutting and | | | | stone to darken, lighten, or even |
| polishing. Please understand that | | | | completely changed and can also improve |
| TREATMENT AND ENHANCEMENT has nothing to | | | | gems clarity and brightness. |
| do with man created gems or synthetic | | | | Heating of most kinds of gemstones is a |
| gems. Treating and enhancing gemstone is | | | | standard treatment procedure. Heating |
| a very common step to improve gems | | | | knowledge was passed over generations. |
| appearance. Some treatment and | | | | Heating Methods vary from simply burning |
| enhancement improved by nature are | | | | method to highly techniques under |
| permanent and cannot be detected. | | | | regulate temperature (More knowledge at |
| Treatment and enhancement procedure so | | | | Diffusion is an enhancement |
| closely resembles what happens in | | | | method, commonly used on corundum, added |
| nature, that one cannot always tell if | | | | iron and titanium during the heating |
| they have been treated after mining or | | | | process of the gemstone, sometime called |
| before. Microscopic examination will | | | | surface diffusion. Diffusion layer |
| sometimes reveal an inclusion that burst | | | | created by adding elements. This layer |
| during heating treatment, but lacking | | | | described as colored coating. |
| that there is no way to tell exact that | | | | Radiation enhancement or irradiation |
| heat treatment was done before or after | | | | means pounding material with subatomic |
| mining. There are many techniques of | | | | particles. In some case, irradiation is |
| treated or enhanced gems (More knowledge | | | | followed by heating to produce a better |
| at Briefly explanations of the | | | | or new color for the gem - such as |
| important techniques is given below. | | | | topaz. Today so many irradiation |
| Oiling treatment method has been used | | | | technique applied and has created shades |
| form more than hundreds years, mostly | | | | that cannot found in natural topaz. Same |
| emerald treated to derive its beautiful | | | | way in tourmaline, irradiation can turn |
| green color and clarity. In the same | | | | dark pink stone into red. For diamonds |
| way, other colored stones such as | | | | irradiation and heating can turned them |
| alexandrite and rubies have been | | | | into browns, blues, yellows, pinks and |
| treated this way makes less surface | | | | greens. |