Look at the color, cut, and clarity of the diamond studs. One should look at the jewelry just as carefully for other tests of quality. First, rub the jewelry hard with your thumb.
Explanation of Cut, Color and Clarity of This Diamond
Cut Quality Proportions of the premium cut diamonds are very close to ideal cut. Premium cut diamond may be close to the ideal cut proportions and look just identical. By all means such diamonds are considered well cut. In fact, many consumers cannot distinguish between the ideal cut diamond and the premium cut. Appearance of diamond is very subjective and cannot be fully evaluated just by their proportions along.
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 SI1 clarity diamonds are slightly included. SI1 diamonds have some inclusions visible under 10x magnification but not easily visible to the naked eye. A diamond with this grade of clarity is an excellent choice for someone on a limited budget.