钻石切工的抛光级别也是五个等级EX(Excellent)、VG(Very good)、G(good)、F(faint)、P(poor)...
ideal excellent vg gd fair ideal全球仅0.15%的钻石,闪耀度打败世界上99.85%的钻石,AGS&GEMEX双重认证。 颜色E 钻石的颜色越接近纯净的白色,就代表它的质量非常优异。钻石颜色评鉴和分类是根据GIA制定的标准,从D(优质白色)到Z(淡黄色或棕色)按字母顺序排列,共分为23个等级。 e这类等级的钻石是无色级别的。净度...
The sparkling quality of the ideal cut is to be determined by 3 separate factors: 1. Proportions 2. Polish 3. Symmetry of all facets Ideal Cut : How Diamond Laboratories grade Cut: 1. Proportions : Excellent 2. Polish : Excellent 3. Symmetry : Excellent 4. Hearts and Arrows Premium ...
A.1,2,3 B.2,3,4 C.1,3,4 D.1,2,3,4 查看答案
Super ideal cut vs GIA excellent cut diamond. So, if you are in the market for a super ideal cut diamond, you need to know how to separate the wheat from the chaff. There are 4 main things you need to bear in mind when shopping for a super ideal diamond. #1 – Ideal Proportions ...
GIA Excellent and AGS Ideal diamonds offer the best in cut quality and light performance. Learn the important differences and why it matters.
hi Paul, can u give me ur expertise on this princess cut diamond based on the numbers and if it would be a good buy? Shape: Princess carat weight: 0.91 color: I clarity: VVS2 polish: Excellent symmetry: Very Good Fluorescence: Medium ...
Hearts and Arrows diamonds are cut with superior symmetry. Learn more about hearts and arrows diamonds and where to buy them at Whiteflash.
An excellent example of a device that can be used as either a linear or a non-linear system is the operational amplifier or op-amp [76,14,2]. It is modeled as a two-terminal circuit (see Fig. 2.3) with two voltage inputs: v−(t), in the inverting terminal, and v+(t), in...
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