Colored diamonds have three characteristics by which they are graded. you need guarantee that a piece of jewelry is what it is supposed to be, Since you can not always tell just by looking at it. In this sense, jewelry is a blind purchase.
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 Diamonds of E color are virtually colorless. Only less than 0.7% of natural diamonds have this color. Diamonds of this color grade will appear colorless even when observed face down against a flat white background.
Clarity VVS1 diamonds have extremely small inclusions, completely invisible to the naked eye. Typically under strong magnification such inclusions appear as minute white dots and are difficult to spot. VVS1 category diamonds are the perfect choice for people looking for perfection and purity.