Clean (Clarity)
- The diamond formation during very rarely had the perfect conditions to have a flawless and clear crystal creating. Sufficient for the temperature slightly fluctuations or other material of small mineral or melt the presence in the environment, and already inhomogeneous to the crystal, zárványos it will be. The synthetic diamond manufacture experience, to exactly the conditions to achieve the perfect result. The starting carbon purity thousandth match you need to check the pressure 50 000 atm-n, the temperature of 1500 C should be kept to 0.1% accuracy. In such conditions, first in 1995, they produced were the first artificial diamonds to make (1995 400 million ct synthetic diamond is produced for industrial purposes, 4-5 times as much as mined).
- The purity of relevant international agreements tenfold magnification lupe apply, which are three lenses, consisting of a lens system with different optical errors in order to avoid (aplanatikus – to the lens to all areas of the same magnification without distortion, achromatic – different colors, same size the lens focus, the colors don't split the zoom in).
The polished diamond errors in two main sections need to be dismantled, the external or surface defects and internal defects.
Below, you can see the diamond purity scale (European old style), which is traditionally in Europe are used. In addition, it is worth to know the american GIA used by the system, which only Piqued (P), named in space. Instead, the american system in the Imperfect (I) term and the abbreviation is used.
Foreign certificate on the often not of the abbreviation is used, but the English term, such as "flawless". It should, therefore, these terms are also studied.
English Abbreviation Mirror translation
Flawless FL hibátlan
Very very slightly included VVS very, very little zárványos
Very slightly included VS very little zárványos
Slightly included SI kicsit zárványos
Imperfect I tökéletlen
The grinding (Cut)
- The history of the diamond is all the wealth or pomp escort, but true beauty is only the sanding with the development unfolded.
The many diamond sanding the form of the classic "round", i.e. round brilliant grinding is the most common, because it beats back the most of the incident light, it is magnificent are the best.
As it evolved the technique is getting improved the polished diamonds reflective ability, more specifically, can they articulate the sanding against their expectations from the experts. The first exact mathematical formulation Tolkowskyé was.
The diamond refractive index of n=2,42. This value is designed for the ideal brilliant shape, which is close to 100% reflectivity in the upper part towards the incoming light.
The brilliant facets, angles of I was determined that if the light on the board comes from, then either the board or to the side of the főfazettákon step out if you have the főfazettákon comes through, then the board through the exit, whereas the lower beveled totally reflected.
The reflective ability (brillance) in addition we can talk dispersion ability, too. This means that the diamond is the white light how wide is the range in resolution of the color scale (violet – red). The high diszperziójú diamond is said to be beautiful "fire" is. The brilancia and the dispersion of each other, at the expense of change of the grinding click. A perfect sparkle and "fire" stone, almost not at all reflected the white light, and vice versa.
The brilliant cut diamonds are fifty-eight facets to it. These surfaces right angle in "rácsiszolásával" available from the corresponding ratio of the reflection and dispersion.
Caution!
The colloquially known as the "brill" or the brilliant diamond equivalent. However, it's good to know that the brilliant a rough form and not the substance suggestive name. The round cubic zirconia can be brilliant cut. Buy so carefully and consciously.
