This enhancement treatment technique has been found way back in 1980. Since then it has been successfully used for enhancing the clarity of diamonds. In this method, first a coating of amorphous carbon or any other energy-absorbent matter is applied on the stone's surface. This is done because a diamond is transparent and with the help of this coating the laser beam passes through the stone easily. After the coating is applied, infrared laser having the wavelength of about 1060nm is inserted to drill tiny holes inside the gemstone. The size of these holes could be between 0.005-0.2 millimeters. The laser beam in these holes reaches the inclusion and burns it. The gemstone then is immersed in chemical solution to dissolve the flaws. The solution could be sulfuric acid or iron oxide. Once the imperfections are removed the holes are re-filled with the clear solution that makes the visibility of holes almost negligible.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment