- MACHINE VISION LENSES
- ITS LENSES
- 360° LENSES
- INTELLIGENT HOME LENSES
- AUTOMOTIVE LENSES
- PRECISION OPTICS
- OPTICAL COATING
Diamond experts have unveiled the diamond alert
According to the quality advisor at bi diamonds, 'Treated diamonds are illusory. They may look good, but you really do not know the quality of diamond you are getting in your rings, and the degree of treatment that was applied to the diamond. Some of the treatments can be removed by wear and repair, thereby revealing the diamonds lower quality and less attractive appearance. An honorable jeweler (most are) will acquaint you with the fact that a diamond is treated, but may not know the actual degree of treatment applied to the diamond. You will become aware of the impact of excessive treatment as we discuss the various treatments and their limitations.'
Here we are additionally explaining the types of treatment offered to the diamonds:
Laser beams can be used to penetrate a diamond and vaporize any imperfections, such as inclusions (dark mineral deposits) that exist.
This process will improve clarity, but will leave hollow laser channels that must be filled with resins and glass hardening substances. Depending on the degree of treatment, these channels may or may not be seen with the naked eye. A competent jeweler or appraiser will see this treatment and will devalue the diamond and appropriately lower the price.
Many polished diamonds have minute fissures or fractures that penetrate into the diamond from the surface and adversely affect clarity. The same, or similar, resins and glass hardening substances that were used to fill laser channels are used to fill these fissures. These treated fissures are normally seen with the aid of a jeweler's loupe or microscope, but a 'flashing' effect can also be seen with the naked eye, if the diamond required extensive treatment.
Good quality controller additional explained problems with laser drilling in addition to fracture filling is as follows:
Consumer needs to know if these treatments were applied to a diamond, because exposure to harsh chemicals and extreme heat, such as a jeweler's torch (when repairs are made to the setting) can remove the filling from the channels and fissures, thereby returning the diamond to its untreated state.
High Pressure-High Temperature (HPHT)
Exposing a diamond to HPHT can alter its color. HPHT can be used to remove the brown or yellow tints from white diamonds to make them more colorless, or intensify the color of fancy colored diamonds, such as yellow, pink, blue and black diamonds. Fortunately, the color change is permanent. Unfortunately, the value of the treated diamond is less than a natural diamond in platinum engagement rings of the same color.
Bombarding diamonds that have certain innate color properties with atomic particles can improve the color. This treatment has been successfully used to enhance the color of green diamonds, in particular. The treated diamonds do become radioactive, but the US government very low and within acceptable ranges prescribes the radioactivity. This treatment does produce a permanent color change, but like HPHT treated diamonds, they are lower in price and value than natural colored diamonds.
Government Requirements on Color Enhanced Diamonds
The Federal Trade Commission requires that all colored diamonds that are enhanced by treatment be disclosed to consumers. Recent legislation requires that color treated diamonds have a disclosing inscription on the girdle of the diamond to avoid misrepresentation.
Buyers can avoid all of these issues and concerns by simply buying a oval cut diamond certified by the GIA. If they want to buy a treated diamond, they should expect to pay a sharply reduced price.
Bi diamonds is always putting their attempts to be able to encourage customers to purchase diamonds in their platinum engagement rings that have been rated for good quality and authorized from the Gemological Institute of America. They cost additional, but at least buyers know very well, what they are purchasing.
For additional information with regards to round cut diamonds visit - BiDiamonds.com
Article Source - http://www.bidiamonds.com/blog/diamonds-alert-be-aware-of-treated-diamonds