Diamond Grading What does it mean?

What you need to know about diamondsCutis the facet arrangement, proportions and shape of the diamond. Baguettes and emerald cuts have parallel facets and are sometimes called step cut. The largest facet is the table, and the bottom facet (sometimes pointed) is the culet. The narrow middle part is the girdle and is often faceted as well.Brilliant cuts usually have 58 facets, 33 on the crown upper part) and 25 on the pavilion (lower part) of the diamond and are oriented around a gemon center point. Careful placement of the facets (faces or sides) determines how well the diamond sparkles (brilliance) and shows the rainbow of colors (dispersion). All diamonds are not well-cut because the cutter is working to make the diamond as large as possible from the rough material.
Claritymeasures the imperfections in the diamond. Diamonds without flaws are quite rare and more expensive. Availability increases as flaws begee more apparent in the diamond, and prices decrease due to the reduced rarity. The clarity is graded in the "face up" position with 10x magnification. The scale begins with Flawless (Fl) and descends through (VVS1) and (VVS2), very very slightly included; (VS1) and (VS2), very slightly included; (SI1) and (SI2), slightly included; and (I1), (I2), and (I3), the included (eye-visible) grades. Internal characteristics begee increasingly noticeable with each lower grade.
Color refers tothe diamondcolor or tint. It does not refer to the prism of colors emanating from a well-cut diamond. The most gemon colors for diamonds are yellow and brown, but they can be any color - even black. White diamonds are actually rather unusual but are the most preferred. Since they are more rare and more desired they are more expensive, too. Grading of color is done with 10x magnification through the pavilion against a white background. Color masters are often used for geparison to determine the exact color grade or tone of color that the diamond shows. The grading scale begins with (D) and ends with (Z). (D), (E) and sometimes (F) are considered colorless; (G-J), near colorless; (K-M), faint tint; (N-R), very light tint; (S-Z), light tint. Each letter represents a slightly darker tone but does not identify the hue.
Carat refers to the weight of the diamond. The carat is 1/5 of a gram and is divided into 100 points. Therefore, one carat can be expressed as 1.00 carat or 100 points. Measurements can be used to estimate the weight of mounted diamonds.