If the culet is faceted then the certificate indicates the size of the facet relative to the size of the diamond. The fashionable and preferred thing to do was to carry their beloved "Omega" watches - which, at the time were called "Bienne" watches - in their pockets. Another method is that you can keep your jewelry in a fabric-lined jewelry case or a box with the soft tissue inside it.
Explanation of Cut, Color and Clarity of This Diamond
Cut Quality Ideal cut refers to the angles and proportions of a diamond that satisfy very precise mathematical formulas. The result is that the the ideal cut diamond internally reflects most light from one mirror-like facet to another and disperse and reflect it through the top of the stone. This results in a display of brilliance and fire, thereby placing ideal-cut diamonds higher on the quality pyramid than deep or shallow-cut diamonds.
Color F color diamonds are close to colorless. F color grade is rare and only surpassed by colors D and E. The naked eye will not detect any presence of color. For perfectionists, look for diamonds with low fluorescence.
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.