Till quiterecently, the color of a diamond was based on the judgment at the rough stage. There are companies which still have the same system. However, at Spectra Diamond, we use science and technology to accurately estimate the color of a stone at the rough stage itself. And you would be surprised to know that a single stone could give you a D color or an Ecolour or an Fcolour or even a fancy colour depending on how exactly it is designed, cut and polished. This allows maximizing the value of a diamond. For us, each stone is a project with the mission to optimize its value through design based on the optimum combination of shape, color, purity and cut.