No natural green diamonds are not radioactive, so you do not have to worry about wearing them. Post earrings use a clutch, nut or some other means to support it in the ear. Wire earrings like fish hooks and kidney wires use a differently shaped small wire that slips through the pierced ear to hold the earrings in place.
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 Diamonds of H color are almost colorless. H color is the second best grade of in near colorless category. To see the presence of color one would place such diamonds against flat white background. Some presence of either yellow, brown or gray tint should be noticeable.
Clarity Diamonds of SI1 clarity are slightly included grade one. Inclusions in SI1 diamonds are easily identified through a strong loupe. Finding flaws in this category with the naked eye is difficult. The diamonds in this category maintain their integrity, depending on the location of the inclusions.