综合上述的比例,对称和抛光等级,鉴定师才能最后得出这枚钻石的切割等级是什么。 一张diamond report上所有关于这枚钻石本身的信息就都在这里了,有的鉴定证书还会附带更多鉴定中心的信息,钻石的编码,二维码等资料,以便于消费者查询真伪。大家可以直接到官网输入手中钻石的信息进行查询核对。 附上GIA证书查询链接: https:...
The final grade assigned to a diamond evaluated by the GIA is Carat. Not to be confused with carrot (we joke) or karat, which is a unit of measure to determine how much pure gold is present in an alloy, Carat is a unit of weight. Many goods around the globe are sold by weight, ...
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This allows GIA to avoid the appearance of favoritism, and insures an objective grade. The submitted diamond is assigned its own internal tracking number and placed into a transparent storage case. The tracking number identifies the diamond as it makes its way through the grading process....
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GIA provides a cut quality grade only for standard round brilliant diamonds that fall in the GIA D-to-Z color range. After the color and clarity grading process, the diamond’s proportions (measurements and facet angles), along with polish and symmetry descriptions, are used to determine its ...
If you are looking for a diamond that is brilliant and rectangular, the best option will be to opt for a radiant cut diamond. These diamonds are usually
How to Tell a Real Diamond by Looking at It The easiest way to tell if a diamond is real is by looking at its sparkle. As mentioned, real diamonds have unparalleled brilliance, characterized by bright white light reflections. If the stone’s shine appears muted or too colorful (with excess...
For diamonds with a symmetry grade of Excellent to Good, symmetry should not be used as a primary factor in choosing a diamond, since each of these grades is possible in diamonds of exceptional appearance. Symmetry is more important in diamonds of VVS2 Clarity and higher, since the very subt...
Pinfire type patterns are often rather static, meaning their overall appearance is much the same from any direction. Other pattern types may change dramatically depending on the angle of view– this can add a dynamic element to the color presentation, but can also detract if the directionality is...