a diamond with an extremely

a diamond with an extremely

a diamond with an extremely

It will be graded weak, moderate, strong, or very strong. Some reports indicate the color of the fluorescence as blue, yellow, white, and so on. If fluorescence is moderate to very strong and the color is not indicated, you should ask the top quality tiffany dragonfly ring to tell you what color the stone fluoresces. A stone with strong yellow fluorescence should sell for less since it will appear more yellow than it really is when worn in daylight or fluorescent lighting. The presence of blue fluorescence will not detract, and in some cases may be considered a bonus since it may make the stone appear more white than it really is in daylight or fluorescent lighting. However, if the report show a very strong blue fluorescence, there may be an oily or milky appearance to the diamond. If the stone appears milky or oily to you as you look at it, especially in daylight or fluorescent light, it should sell for less.

Here the extra thickness in the girdle helps protect the points themselves from chipping.Generally, a diamond with an extremely thin girdle should sell for less than one with an extremely thick girdle because of the diamond's increased vulnerability to chipping. However, if the girdle is much too thick (as in older diamonds), the price can also be significantly less because the stone cam look significantly smaller than other diamonds of comparable weight.The CuletThe culet looks like a point at the bottom of the diamond, but it is normally another facet, a tiny, flat polish surface. This facet should be small or very small.

These stones normally need to be re-cut, and their price should take the need for re-cutting. for the same reasons, a chipped or broken culet will seriously detract from the stone's beauty and significantly reduce the cost.Color and ClarityThe color and clarity grades on a diamond report are the items most people are familiar with. They are important factors in terms of determining the value of a diamond, but as the preceding discussion has shown, they do not tell the whole story about the diamond.A word about fluorescenceFluorescence, if present, will also be indicated on a diamond grading report.

A small or very small culet won't be noticeable from the top. Some diamonds, today, are pointed. This means that there really is no culet, that the stone has been cut straight down to a point instead. The larger the culet, the more visible it will be form the top. The more visible, the lower the cost of the diamond. Tiffany 1837 described as having large or "open" culet as in old European or old-mine cut diamonds are less desirable, because the appearance of the culet causes a reduction in sparkle or brilliance at the very center of the stone.

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