Filler diamonds is easier to understand
Diamonds with poor clarity or good or inferior marks are filled to improve their clarity level
How to identify
1. Magnify and observe the orange-yellow, yellow-green or purple-red flashing effect of the filling fissure mask. This flashing phenomenon can show different colors at different positions on the fissure surface, and the color of the flashing can change with the rotation of the sample, and the bright area will be changed during observation. For lighting or dark-field lighting, the flash color changes from blue to green in the bright field and orange-red in the dark field.
2. Observe the characteristics of the fracture surface, including the special-shaped bubbles that may exist in the fracture, flow traces, flocculent structure of the filling, and the light brown or brownish-yellow appearance of the thick filling.
3. Observe the surface characteristics of the filled fissures. Sometimes part of the fillings can remain on the surface of the diamond, and the luster and color of the fillings on the surface of the fissures are still slightly different from those of diamonds.
4. After the cracks are filled, the color of the diamond will also change. Under a ten-fold magnifying glass, a hazy blue-violet hue will often appear. Large-scale testing instruments such as Raman spectrometer, spectrometer, energy spectrometer, X-ray photography technology, etc. are used to analyze the composition and phase of the filling and filling characteristics. Obviously, this method needs to be carried out in a qualified laboratory. It can be completed only with the guidance of specially trained technicians. At present, most of the filled diamonds on the market can be identified under conventional instruments.
