The present invention relates to the method and device to determination of the properties of gemstones and more particularly evolution of gemstone by detection of internal and external structure of gemstone. In particular, the present invention methods and device is used to identify the size, location of impurities/defects in raw gemstone with the help of optimize spectroscopy scanning. The present invention method and device is used for precise automatic evolution of gemstones and possibilities (estimation) of final value of planned gemstone after remaining gemstone processing cycle.
