In fact, a layman may now find it hard to tell the difference between a fake diamond from a real one. First, get all of it cleaned in an ultrasonic cleaner at a jewelry store. For the last pile, don't feel badly about putting jewelry in that pile.
Explanation of Cut, Color and Clarity of This Diamond
Cut Quality Diamonds of fair cut quality are still quite attractive, but they may not be as brilliant as the top 3 grades. Fair cut diamonds are proportioned to yield more carat weight from the diamond rough. Such diamonds may be attractive to budget-conscious customers.
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 Inclusions and external blemishes in diamonds of SI1 clarity may be easy to spot under 10X power magnification. Location of the inclusions greatly affect their visibility to the naked eye. SI1 diamonds of good color produce as good of a sparkle as the more expansive VS graded stones of lower color. Excellent bargains may be fond in this category.