了解钻石分级

Learn About Diamond Grading

颜色 Colour

大多数用于珠宝的宝石级钻石，其颜色从完全无色到肉眼可见的色调有所不同。

最稀有且最昂贵的是无色等级的钻石，在颜色等级中被评为D、E 和 F，该等级从 D 开始一直下降到 Z。

颜色超过 Z 等级，或者呈现橙色、粉色、蓝色等其他色调的钻石，被归类为

“彩色钻石”（Fancy Coloured Diamonds）。

Most diamonds of gem quality used in jewellery vary in shade from completely colourless down to a visible tint.

The rarest and most expensive are diamonds in the colourless range graded D,E and F on a scale that descends to Z.

ImageDiamonds with more color than Z, or in other shades such as orange, pink, blue, etc. are classified as "Fancy Coloured Diamonds".

净度 Clarity

由于钻石是在极高的温度和压力下形成的，因此内部和外部特征是很常见的。这些特征可以帮助宝石学家识别每一颗独特的钻石。

为了对钻石的净度进行分级，必须观察其外部和内部特征的数量与性质，以及这些特征的大小和位置。

Since diamonds form under extreme heat and pressure, internal and external characteristics are common. These characteristics help gemologists identify individual stones.

In order to grade the clarity of a diamond, it is necessary to observe the number and nature of external and internal characteristics of the stone, as well as their size and position.