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Diamond
The ultimate gemstone and one of the most widely traded jewelry products worldwide.
Industry: Jewelry
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Diamond
馬塞爾 · Tolkowsky
Jewelry; Diamond
1919 年馬塞爾 · Tolkowsky 計算剪切的一顆鑽石,釋放最美最好理論的妥協。表的寬度小關節被發現的那塊石頭,亭角度為 40 度和 45 度的總寬度 53%。Tolkowsky 切為現代美國切提供了基礎。 ...
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