“梨形钻石”切工相关比例基本参数

标签:
时尚 |
分类: 梨形钻 |
http://s5/middle/51f0f6abgabdf2154c2c4&690
特性
大小因素
梨形切工钻石的基本比例参数
切工级别 |
1A |
1B |
2A |
2B |
3A |
3B |
4A |
4B |
|
完美切工 |
极好切工 |
国际贸易好切工 |
美国平均切工 |
平均以下 |
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台面大小% |
55-60% |
53-61.5% |
52-62% |
51-64% |
51-67% |
49-70% |
48-72% |
>72% |
冠高% |
12-15% |
11.5-16% |
11-16.6% |
10.1-17.5% |
9-18% |
8.3-18.9% |
7.8-19.5% |
<7.8% |
腰厚 |
非常薄到厚 |
非常薄到厚(0.4%-5.5%) |
非常薄到非常厚 |
极薄到极厚 |
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总深度% |
59.0-63.0% |
63.1-65.4% |
56-68.5% |
46-71% |
43-73% |
>73% |
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长宽比 |
梨形1.50-1.75 |
1.26-1.99 |
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打磨/对称不是一个主要的因素 |
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梨形切工钻石款式
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http://img04.taobaocdn.com/bao/uploaded/i4/T1Lzl6XfVhXXbFRp7._111216.jpg_310x310.jpg
http://img04.taobaocdn.com/bao/uploaded/i4/T1.h46XXBmXXaQ0h38_071016.jpg_310x310.jpg
http://img03.taobaocdn.com/bao/uploaded/i3/T1Fi86XdddXXbKtm38_071638.jpg_310x310.jpg
http://img04.taobaocdn.com/bao/uploaded/i4/T1vjd6XhBaXXbEU_E5_060218.jpg_310x310.jpg