The Definitive Guide to 介指
The Definitive Guide to 介指
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在考慮鑽石色澤時，同時也應將螢光反應考慮在內，螢光反應是指鑽石曝露於紫外線光線下時，所發生的反應顏色光。但是螢光反應甚少對鑽石的價值發生影響，除非是具有非常強烈螢光的鑽石會影響其透明度及光彩，而產生油濛狀的外表，如此將減損鑽石的美麗及價值，但是若其螢光不至使鑽石產生油濛狀外觀，則不應將其視為一種缺點。
In response to general public issues that their diamond purchases were being contributing to war and human legal rights abuses in central and western Africa, the United Nations, the diamond marketplace and diamond-trading nations launched the Kimberley Procedure in 2002.[142] The Kimberley Procedure aims to make certain that conflict diamonds usually do not turn out to be intermixed With all the diamonds not controlled by these types of rebel teams. This really is finished by requiring diamond-developing international locations to supply evidence that The cash they make from offering the diamonds isn't utilized to fund felony or groundbreaking actions.
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天然鑽石和人造鑽石有什麼分別？ 天然鑽石和人造鑽石有什麼分別？ 何謂天然鑽石？
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The wearer must be calculated with a sizer that is analogous in width on the ring. Large and slim rings match really in different ways even though the very same diameter.
The dispersion of white gentle into spectral colors is the principal gemological attribute of gem diamonds. In the 20th century, industry experts in gemology created methods of grading diamonds and various gemstones according to the features most important to their benefit as being 銀座白石 a gem. Four properties, recognized informally as being the 4 Cs, are now typically utilised as The essential descriptors of diamonds: they are its mass in carats (a carat currently being equivalent to 0.
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Its optical transparency extends through the significantly infrared for the deep ultraviolet and it has high optical dispersion. It also has superior electrical resistance. It can be chemically inert, not reacting with most corrosive substances, and has superb Organic compatibility.[nine]
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訂婚戒指方方面面都揭露了求婚者和被求婚者的許多信息。你是怎麼樣的男性，就該選擇什麼風格的戒指，或者，那個特色風格的戒指，就會找上你。