These reports include gemmological examination of a colorstone characteristics such as Color, Shape, Cut, Dimensions, Ct weight, Specific Gravity, Refractive Index, Magnification & Treatments. The report states whether the material is natural or synthetic and if it has been treated to enhance its appearance by an identifiable treatment. SDI issues Colour stone Identification Report for individual loose, polished or rough, synthetics and simulants. A colour photograph accompanies the report to further authenticate the gemstone.