For this reason diamonds should be viewed UN-mounted. When it is any other colour it is called sapphire. Both rubies and sapphires are very good gemstones.
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 Slight presence of color may be detected in F color graded diamonds by an expert gemologist. The diamonds of this grade are considered colorless. Great choice for the purist. Look for a fluorescence rating of faint, inert, none, or negligible.
Clarity Diamonds of SI2 clarity are grade two slightly included. Depending on the location, SI2 inclusions in these diamonds may be perceptible to the naked eye. Good color SI2 clarity diamonds are an attractive choice when working within a fixed budget without sacrificing beauty or value. These diamonds balance good clarity with exceptional price.