When white light is injected into the facet of the gemstone, when it is reflected or transmitted out of the gemstone, the light is decomposed by refracting at different angles for each wavelength of the white light, and the color of the spectrum is exhibited—that is, the spectrum of the dispersion effect on the surface of the faceted gemstone. color. The colorless and transparent faceted gemstones show the dispersion effect of white light. The color and transparency of colored faceted gemstones affect color and purity and transparency.
The shape, cut, polished and material of the stone. Will have an impact on the fire. The same gems, the stronger the fire, the higher the value.