Diamond cutting

The 253-carat Oppenheimer Diamond—an uncut diamond does not show its prized optical properties.

Diamond cutting is the practice of changing a diamond from a rough stone into a faceted gem. Cutting diamond requires specialized knowledge, tools, equipment, and techniques because of its extreme difficulty.

The first guild of diamond cutters and polishers (diamantaire) was formed in 1375 in Nuremberg, Germany, and led to the development of various types of "cut". This has two meanings in relation to diamonds. The first is the shape: square, oval, and so on. The second relates to the specific quality of cut within the shape, and the quality and price will vary greatly based on the cut quality. Since diamonds are one of the hardest materials, special diamond-coated surfaces are used to grind the diamond down. The first major development in diamond cutting came with the "Point Cut" during the later half of the 14th century: the Point Cut follows the natural shape of an octahedral rough diamond crystal, eliminating some waste in the cutting process.

单词	bruting
释义	bruting 英汉-汉英词典 n. 粗磨；以钻石彼此磨擦使其成形的方法 v. 磨削；粗加工（brute的ing形式）词组 \| 习惯用语您要查找的是不是： brute n. 畜生；残忍的人 adj. 残忍的；无理性的；粗暴的 brut adj. 极干的（尤指香槟酒）；粗糙的 n. 低糖的酒 Britain n. 英国；不列颠 Brattain 布拉顿 bruting n. 粗磨；以钻石彼此磨擦使其成形的方法; v. 磨削；粗加工（brute的ing形式）; 网络短语: bruting g 粗磨 bruting stick 打圆用磨杆 bruting dop 打圆用夹嘴 bruting machine 打圆机 bruting diamond 粗磨钻石英语百科 Diamond cutting Diamond cutting is the practice of changing a diamond from a rough stone into a faceted gem. Cutting diamond requires specialized knowledge, tools, equipment, and techniques because of its extreme difficulty. The first guild of diamond cutters and polishers (diamantaire) was formed in 1375 in Nuremberg, Germany, and led to the development of various types of "cut". This has two meanings in relation to diamonds. The first is the shape: square, oval, and so on. The second relates to the specific quality of cut within the shape, and the quality and price will vary greatly based on the cut quality. Since diamonds are one of the hardest materials, special diamond-coated surfaces are used to grind the diamond down. The first major development in diamond cutting came with the "Point Cut" during the later half of the 14th century: the Point Cut follows the natural shape of an octahedral rough diamond crystal, eliminating some waste in the cutting process.
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bruting

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网络短语:

Diamond cutting