Carat weight: Carat is the metric to measure the weight of the diamonds, each carat is divided into 100 points, for example a diamond of 100 points weighs 1.00. The weight of the diamond is the main factor in determining the value of a diamond, for determine the price also the quality plays a mainly role.

At the begging diamonds used to be measured by its size and not by its carat weight, now two diamonds with the same weight could have different sizes, it depends on the cut.

Cut is very important. A properly cut diamond will both yield a good face up size and sparkle well. This is why it’s important not just to get the biggest diamond you can afford, but the best cut diamond as well.

Clarity: this measures the diamond’s flaws (internal or external inclusions) and impurities. The best diamonds are those free of flaws and inclusions, where the light doesn’t find any interferes in passing through the diamond. The analysis of clarity can be only done by experts and gemologists by a 10x magnification view. The lack of clarity affects the beauty of the diamond but not its durability.

Color: the color of a diamond varies from totally colorless to light yellow. The differences aren’t obvious so is quite difficult to distinguish it and determine it.

Cut: it’s wrong to confuse the cut of a diamond with its shape. The cut is about the general precision and quality of the overall cutting. This is the C more difficult to evaluate, even the different labs haven’t reach an agreement. The diamond’s cut usually considers three criteria: proportions, symmetry and polish. Symmetry measures how well the facets match the other facets while polish is a measure of the surface finish.