Cut --Refers to the angles and proportions of a diamond. Based on scientific formulas, a well-cut diamond will internally reflect light from one mirror-like facet to another and disperse and reflect it through the top of the stone. This results in a display of brilliance and fire, thereby placing well-cut diamonds higher on the Diamond Quality Pyramid than deep or shallow-cut diamonds.
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Color --Refers to the degree to which a diamond is colorless. Diamond color has a significant impact on its value. The color scale ranges from D to Z, from colorless to light yellow. Warmer colored diamonds (K–Z) are particularly desirable when set in yellow gold. Icy winter whites (D–G) look stunning set in white gold or platinum.
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Clarity --Diamonds with few flaws, or inclusions, are very rare and highly valued. Inclusions are natural identifying characteristics such as minerals or fractures, appearing while formed in the earth. They may look like tiny crystals, clouds or feathers.
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Carat --Refers to the weight of a diamond. Carat is often confused with size even though it is actually a measure of weight. One carat is equivalent to 200 milligrams. One carat can also be divided into 100 “points.” A .75 carat diamond is the same as a 75-points or 3/4 carat diamond.
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