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The jewelry industry recognizes the highest quality gemstones by purity of their hue, the depth of tone, and the color saturation. The best value is in colors that include "slight" traces of other colors, are not too light or dark, and have a lot of saturated color. Preciousglow.com offers some of the highest-quality colored gemstones available.
Almost all gemstones contain tiny fractures called inclusions. Flawless gemstones are very rare and valuable, and even most high-end gemstones are at least slightly included. The best value is found in gems that are lightly- to moderately-included, like those found in Preciousglow.com gemstone jewelry.
Unlike diamonds, with gemstones there isn't an "ideal" cut geometrically configured for maximum brilliance. But a high-quality gemstone cut is one that presents the most even color, exposes the fewest inclusions, and displays the majority of the gemstone weight when set in jewelry.
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The carat weight of a gemstone is not necessarily an accurate gauge for gemstone size. To help you judge the size of a gemstone, Preciousglow.com lists the diameter of the gemstone when viewed from above - since if the gemstone is set in jewelry; this is the only part of the gemstone that is visible.
Nearly all colored gemstones available have been enhanced. Gemstones that have not been enhanced but exhibit desirable color and clarity are very recognizable by the extravagant price they command. Some enhancements, such as heating, are an expected part of the polishing and finishing process and are accepted by the jewelry industry, and by Preciousglow.com.
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