subject: GN018 - Gucci necklace with beaded chain and toggle closure [print this page] GN018 - Gucci necklace with beaded chain and toggle closure
When dirty, such stones look no better than a piece of glass.We avoid GN011 - Gucci ellipse tag necklace with depth percentages over 64% or under 57%. If you are attracted to such diamonds remember that they should sell for much less per carat.Table PercentageRound diamonds cut with tables ranging from 53% - 64% usually result in beautiful, lively stones. Diamonds with smaller tables usually exhibit more fire than those with larger tables, but stones with larger tables may have more brilliance.
Depth percentage and Table percentage key to beautyTo determine whether or not a round stone's proportioning, so critical to its beauty, is good, look at the section of the report that describes depth percentage and table percentage. The depth percentage represents the depth of the stone, the distance from the table to the culet, as a percentage of the width of the stone.
The table percentage represents the width of the table as a percentage of the width of the entire stone. These numbers indicate how well a round stone has been cut in terms of its proportioning, and must adhere to very precise standards. Your eye may be able to see differences in sparkle and brilliance, but you may not be able to discern the subtleties of proportioning.
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 GN018 - Gucci necklace with beaded chain and toggle closure.
