Because many customers are familiar with the diamond grading scales as developed by GIA, we have included the below information for comparative purposes as it is frequently requested by customers:
The value of a diamond is determined by four factors: Cut, Color, Clarity and Carat. Most gemologists consider cut to be the most important diamond characteristic because it has the largest impact on a diamond's brilliance. Even if a diamond has perfect color and clarity, a diamond with a poor cut will have dulled brilliance. Despite its importance, the cut of a diamond is generally the least understood by consumers and often disregarded.
The Asha is hand-cut to precision and grades better in every aspect of the Gemological Institute of America (GIA) diamond grading scale than 99.9% of diamonds on the market.
This level of cutting perfection is rarely achieved (0.1%) in natural diamonds. This is due to the time and cost available (it takes the Asha diamond cutters 8x longer to cut a Round Brilliant Hearts & Arrows cut than to cut a typical round brilliant diamond), and more than anything else, the diamond industry's focus on maximizing the carat weight of a diamond, not its physical beauty.
The Clarity of a gemstone is a description of its internal purity of a diamond. The clarity of the Asha diamond simulant is on average VS. In some cases inclusions may be seen by the trained eye under 10x magnification when looking at SI1 - VS clarity gemstones. There may be microscopic natural feathers in the diamond layer, just like an earth mined diamond.
Acting as a prism, a diamond can divide light into a spectrum of colors and reflect this light as colorful flashes called fire. Just as when looking through colored glass, color in a diamond will act as a filter, and will diminish the spectrum of color emitted. The less color in a diamond, the more colorful the fire, and the better the color grade.
It is often very difficult to detect the difference between a colorless diamond (D-F) and a near colorless diamond (G-H), especially when it is mounted in jewelry. Diamonds with a K-Z color grade usually have yellow shading that can be detected by the naked eye.
The color of Asha ranges from E to H depending on the cut and more importantly the carat weight of the stone. Larger Asha stones require a thicker layer of the Amorphous Diamond Treatment which a tiny amount of color in the Asha stone. Although a G color, for example, is considered "near colorless" in our experience we have found that customers overwhelmingly prefer it over a D color, crystal white stone, because they feel it appears more "real" while still appearing colorless.
Carat is the traditional measuring unit of a diamond's weight (1 carat = 200 milligrams or 0.2 grams). A carat is divided into 100 "points," so the same diamond can be represented as weighing a carat and a half, 150 points or 1.50 carats.
Asha stones are heavier than natural diamonds. Therefore, a 6.5mm round diamond would weigh 1.0 ct while a 6.5mm Asha would weigh more than 1.0 ct. However, the two stones would be the same size, 6.5mm in diameter.
In order to minimize the confusion this can create, all stones are listed on AshaDiamonds.com with their actual size in mm and/or the diamond equivalent in carats. Please refer to the Asha inventory page for mm to carat conversion for Asha stones.
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