Jewelers generally rely on something called a thermal-probe to detect a fake diamond. In 16th century Italy, hairstyles changed with hair being swept away from the face leaving ears exposed although for another 100 years things stayed the same in England, Spain and France with the wearing of high collars keeping earrings out of fashion. By the 17th century, earrings became very fashionable accessory for the well dressed lady across the whole of Europe.
Explanation of Cut, Color and Clarity of This Diamond
Cut Quality Diamonds with good cut still have very good proportions and will reflect large percentage of incoming light. Good cut diamonds still have excellent brilliance and fire. This grade represents an excellent balance between quality and price.
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 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.