Diamonds :Evaluating Proportioning From The Report

As discussed earlier, good proportioning is as critical to diamond as it is to the man or woman who wears it! The proportioning, especially the depth percentage and table percentage, s what determines how brilliance and fire the stone will have.The information provided on diamond reports pertaining to proportions is critically important for round, brilliant cut diamonds. Unfortunately, it is only of minimal use with fancy fancy shape diamonds. For fancies, you must learn to rely on your eye to tell whether or not the proportioning is acceptable: are there differences in brilliance across the stone? Or flatness? Or dark spots such as "bow-ties" resulting from poor proportioning.

Evaluating the proportioning of a diamond is as critical as evaluating the color and clarity grades. Diamonds that are cut close to "ideal" proportions, stones with "excellent" makes can easily cost more than the norm while diamonds with poor makes sell for less; very badly proportioned stones should be priced for much less. The information on a diamond report can help you evaluate the proportioning and know whether or not you should be paying more, or less, for a particular diamond.

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