diamond segment describes the optical properties of

 (1) flashing (Scintillation) is flashing diamond flash, that is, when the diamond or the light source, the diamond cup grinding wheel  observer moves relative to the surface of the white light reflection and flash. Colorless, transparent, well-crystallized poly octahedral shaped diamond surface bodies or, if not Gache grinding can expose good flashing light.
(2) Identification of the optical intensity (Brilliance) because of the diamond has a very high reflectivity of the reflection critical angle is small, a wide range of total reflection, total reflection light is easily reflected light is large, resulting in high brightness.Depends concrete drill bits  not only on the performance of the blade diamond, but on the diamond and the binder with the appropriate head of this composite material composed of the overall performance. For marble and other soft stone, head of the mechanical properties required is relatively low, the choice of copper-based binder. The sintering temperature is low but the copper-based binder, strength, low hardness, high toughness, low bonding strength with the diamond. When adding tungsten carbide (WC), the WC or W2C to as a skeleton metal, with the brick saw blades  amount of cobalt in order to improve the strength
(3) Gloss (Luster) outstanding diamond-like hard, smooth and bright crystal face or cleavage face in white light reflection effect particularly strong, and this is very characteristic of the role of reflective called adamantine luster.
(4) the dispersion or the fire (Dispersion or fire) planes of diamond as diverse as prism, can through refraction, reflection and total reflection into the interior of the crystal composition of white light into white color - red, orange, yellow, green, blue, indigo, violet shade.