刚买了个钻戒，颜色级别：I-J，纯净度：VVS，切工proportions，钻石：1.17克拉，托底是AU750
推荐回答（3个）
首先，proportions不是钻石的切工等级，是这颗钻石切工的各个面的数值相对于平均直径的百分比，任何一颗钻石鉴定证书都会出现这个术语，这个单词下面的数据是对这颗钻石切工的专业评判。钻石的切工等级是以Excellent（EX 完美卓越的）、Very Good（VG 非常好）、 Good（G 好）fair（一般）poor（差）表示的，证书中的Cut Grade表示的是切工等级，所以你要看看这个词后面的是我上面提到的哪个级别，另外切工还有另外两个参考标准，即抛光度和对称度，如果这三个指标都是EX级别的，钻石的火彩是最漂亮的，抛光度可能会因为钻石本身的一些特性而达不到完美卓越的EX级，世上也没有一颗钻石是完全对称的，只要切工的各个面的数值相对于平均直径的百分比在合理范围内就可以了，所以，这两项在GOOD以上就行。
I-J属于接近无色级，VVS属于有肉眼看不到的极其极其微小的内部瑕疵。
我买钻戒的这家店没有刚好是1.17的克拉钻，目前现货最接近的是一颗1.11的裸钻，1.11ct I VS2 EX VG VG None 37600元，None代表这颗钻石没有荧光反应，荧光反应直接影响钻石的美感，具有荧光反应的钻石，与其他各项指标相同但没有荧光反应的钻石价值低得多。荧光反应在证书中的术语是Fluorescence，级别按强弱分为四级，荧光反应有蓝色和黄色两种，黄色影响钻石的颜色，蓝色荧光反应会使钻石的颜色看起来白，视觉上反而会提高颜色等级。
说实话，五万多的价钱，除去戒托材质和两颗副钻的价钱，裸钻的价钱如果在46000-48000之间，这个价钱应该买颜色等级高的，只有颜色超过F级净度超过VS2级的钻石才具有保值价值，在这个基础上再考虑钻石的重量即克拉，20-50分的可以保值，也就是以小换大时不会收折旧费，50分以上的就随行就市水涨船高具有升值价值了。这种级别的钻石的切工一般都会比3个G高，甚至是3个EX的。
46000这个价钱在我买钻戒的店可以买到的具有升值价值的裸钻是90分左右的颜色E、F净度VS1、VVS2的切工至少两个EX的市场价在88000左右的钻石，视觉上台面大小跟克拉钻没有太大区别，但绝对比你那个颜色级别的值钱，。
钻石的重 1.17克拉
颜色等级 I-J(即我国百分制的95-94色）
净度等级 VVS（极微瑕级）
切工按所报的数据是属于“很好”级
从上述情况看，这颗钻石还好。如果钻石没问题的话，价格很实惠。
净度相当的好 但是颜色的话不怎么样哦 不过总的来说你这颗钻还是不错的
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