The round brilliant cut diamond is by far the most classic and the most popular. Since the first time diamonds were being cut, variations on the round shape have been used. Its 57 facets bring out the most brilliant fire and sparkle of all the shapes. The incandescent of these magnificently shaped diamonds keep them popular.
A Round diamond sacrifices more of its original carat weight than any other shape during the cutting and processing stage of the diamond.
A carat (ct.) is the unit of measurement specifically used to describe the weight of a diamond (or other gemstones). A single carat is equivalent to 0.2 grams, or 200 milligrams, and is divided into 100 points. Don't confuse "carat weight" with "karat," the method of determining the purity of gold.
AA certified diamond that comes with a grading report, indicates the exact carat weight to the nearest hundredth of a carat, in decimal format.
A diamond's color has a significant impact on its appearance. With its many prismatic facets, a colorless diamond reflects light into a spectrum of hues, a characteristic often referred to as "fire". The presence of noticeable color in a diamond may reduce its ability to reflect light.
Consequently, diamonds with lower color grades will not show the same luminosity and fire as those with higher grades. The most valuable diamonds have little to no detectable color.
When we speak about diamonds clarity, we are referring to the presence of blemishes and inclusions in the diamond. Inclusions on a diamond can be considered as the diamonds birthmark and blemishes refer to surface flaws. Blemishes and Inclusions have direct impact on its clarity and value while grading the diamond.
The grading of diamonds for clarity is done under 10x loupe magnification. Grades range from Flawless (diamonds that are free of blemishes and inclusions), to Included 3 (diamonds having large, heavy blemishes and inclusions that are visible to the naked eye).
|FL & IF||Flawless: There are no internal or external imperfections.
Internally Flawless: No internal flaws, but some surface flaws. Very rare diamonds.
|VVS1 &VVS2||Very, Very Slightly Included: Very difficult to detect imperfections under 10x magnification. An excellent quality diamond.|
|VS1 & VS2||Very Slightly Included: Contains minute inclusions such as small crystals, clouds or feathers when observed with effort under 10x magnification.|
|SI1, SI2 & SI3||Slightly Included: Noticeable inclusions are detected under 10x magnification, including clouds, knots, crystals, cavities, and feathers.|
|I1, I2 & I3||Included: Contains very obvious inclusions that are visible under 10x magnification, as well as to the naked eye.|
First, let's not confuse diamond "cut" with "shape." Shape refers to the general outward appearance of the diamond, (such as round, emerald, or pear). When a diamond jeweler (or a diamond certificate) says "cut," that's a reference to the diamond's reflective qualities and not the shape.
A diamond's cut is the most critical of the 4Cs because it's what gives the diamond its brilliance, sparkle, and fire, the diamond's three main attributes.
A certificate is a "blueprint" of the diamond, it tells you the diamond's exact measurements and weight, as well as the details of its cut and quality. It precisely points out all the individual characteristics of the stone. Certificates also serve as proof of the diamond's identity and value.
A diamond certificate, also called a diamond grading report or diamond quality document, is a report created by a team of gemologists. Diamonds are evaluated, measured and scrutinized using trained eyes, jeweler's loupe, a microscope, and other industrial tools. A diamond certificate mentions the complete analysis of the diamond's dimensions, clarity, color, polish, symmetry, and other characteristics.