As a general rule, the position of any given inclusion will progressively downgrade and devalue a diamond as indicated below. In the jewelry business, there are 200 known kinds that are used. The most expensive of the three watch faces is the sapphire crystal.
Diamond Certificate
Explanation of Cut, Color and Clarity of This Diamond
Cut Quality The ideal cut diamond is a very precise mathematical equation, where diamond proportions and angles are cut to optimize the diamond's superlative optical properties, in particular it's high refractive index and color dispersion, to create a diamond of unequaled beauty with perfect balance of brilliance and fire. In layman's terms, the diamond is cut to make it the most beautiful diamond so it retains its intrinsic value.
Color I color diamonds are almost colorless. I color will be slightly detectable to the experienced eye. When cut to ideal proportions, the diamond will produce a warm intensity. I color diamonds are excellent value for the budget conscious and allow to save money or get a bigger diamond or a better cut.
Clarity Typically VS2 diamonds have minuscule inclusions. Inclusions in VS2 clarity grade should be mainly light-colored and completely invisible to the naked eye. Very small dark inclusions are allowable under the girdle when view under 10x magnification. Diamonds in VS2 category are great choice for people looking to balance high clarity and affordable price.