案例一：这个钻石的等级是由亮度、闪烁和抛光决定的。虽然没有单独的比例必然会导致其亮度或闪烁表现不佳，这一特定比例的组合导致增加黑暗的凉亭电源。
his diamond's grade is determined by brightness, scintillation, and polish. Although no individual proportions would necessarily cause its brightness or scintillation to perform poorly, the combination of this particular set of proportions leads to increased darkness in the pavilion mains.

案例二：这个钻石的等级取决于它的火焰、闪烁和重量比。它有一个“粗糙”的格局，极有可能造成更高的树冠高度有点陡冠角，配以长下腰刻面。
his diamond's grade is determined by its fire, scintillation, and weight ratio. It has a "splintery" pattern, most likely caused by a higher crown height with a somewhat steeper crown angle, accompanied by long lower-girdle facets.

案例三：这个钻石的等级取决于它的亮度、闪烁度和光洁度。有一个轻微的黑暗中的表和沿腰带的方方面面。
his diamond's grade is determined by its brightness, scintillation, and finish. There is a slight darkening within the table and along the upper-girdle facets.

案例一：这个钻石的等级受到它的闪烁的限制。在这种情况下，有点浅的亭子角会产生黑暗的亭子。
his diamond's grade is limited by its scintillation. In this case, the somewhat shallow pavilion angle produces dark pavilion mains.

案例二：这个钻石的等级取决于它的火焰、闪烁和重量比。一个陡峭的皇冠角，加上稍微陡峭的亭子和这个总的深度，导致一个钻石，显示一个稍微黑暗的戒指在表的边缘，以及一些黑暗的上腰带方面。
his diamond's grade is determined by its fire, scintillation, and weight ratio. A somewhat steep crown angle, combined with a slightly steep pavilion and this total depth,leads to a diamond that displays a slightly dark ring within the table edge, as well as somewhat dark upper-girdle facets.

案例三：这个钻石的等级受到它的闪烁的限制。浅冠角和低冠高导致一个脸上出现在它的模式和局部黑暗缺乏对比（特别是在表面积）。
his diamond's grade is limited by its scintillation. The shallow crown angle and low crown height lead to a face-up appearance with a lack of contrast in its pattern and localized darkness (especially in the table area).

案例一：这个钻石的等级受到它的闪烁的限制。一个浅冠角和一个稍微浅的亭子角相结合，导致一个脸上的外观，缺乏对比和一般的黑暗。
This diamond's grade is limited by its scintillation. The combination of a shallow crown angle and a somewhat shallow pavilion angle leads to a face-up appearance with a lack of contrast and general darkness.

案例二：这个钻石的等级取决于它的火焰、闪烁和重量比。一个稍微陡峭的冠角，结合一个陡峭的亭角和大的总深度，使这个钻石显示一般黑暗的表区和非常黑暗的腰带区域。
his diamond's grade is determined by its fire, scintillation, and weight ratio. A slightly steep crown angle, combined with a steep pavilion angle and large total depth, causes this diamond to display general darkness in the table area and very dark upper-girdle areas.

案例三：这个钻石的等级受到它的亮度和闪烁的限制。大桌子和一个稍微浅的冠高，带有这个亭子的角度，导致这个钻石一般的黑暗，伴随着一个轻微的鱼眼，当钻石倾斜时变得更加明显。
This diamond's grade is limited by its brightness and scintillation. The large table and a somewhat shallow crown height, with this pavilion angle, cause a general darkness in this diamond, along with a slight fisheye that becomes more evident when the diamond is tilted.

案例一：此钻石的等级受到其重量比的限制。 尽管此钻石的大部分比例都相当标准，但极厚的腰围大大增加了钻石的全深。 因此，此钻石的实际直径远远小于其克拉重量应有的直径。

案例二：此钻石的等级受到其火彩和闪光的限制。 略陡的冠角结合极陡的底角和较大的全深，让这颗钻石的桌面和腰上刻面非常黯淡。

此钻石的等级受到其重量比的限制。 较陡的冠角和略陡的底角结合极厚的腰围，增加了钻石的全深。 因此，此钻石的实际直径远远小于其克拉重量应有的直径。