Obviously a grey-white metal would hardly make an ideal substitute diamond so the raw material needs processing to produce the clarity required for jewelery. Simply beware of bracelets that have poor color. Tennis bracelets with good color will always provide plenty of sparkle.
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 F color are very close to colorless. Very small percentage of natural diamonds fall into this category. Even a trained professional will not be able to detect presence of color without instrumentation.
Clarity SI2 clarity diamonds are slightly included grade two. SI2 inclusions in diamonds are easily visible under 10x magnification. These inclusions may or may not be discernable to the naked eye depending on their location on the diamond, but these diamonds still presents an excellent value.