Not known Facts About 鑽石
Not known Facts About 鑽石
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A standard misunderstanding is the fact diamonds sort from very compressed coal. Coal is formed from buried prehistoric crops, and many diamonds which were dated are considerably older than the main land crops.
Coloured diamonds consist of impurities or structural defects that cause the coloration, though pure or virtually pure diamonds are transparent and colorless. Most diamond impurities change a carbon atom in the crystal lattice, referred to as a carbon flaw. The most common impurity, nitrogen, will cause a slight to intensive yellow coloration depending on the sort and focus of nitrogen current.[36] The Gemological Institute of America (GIA) classifies very low saturation yellow and brown diamonds as diamonds in the conventional color array, and applies a grading scale from "D" (colorless) to "Z" (gentle yellow). Yellow diamonds of large color saturation or another shade, including pink or blue, are known as extravagant colored diamonds and slide underneath a distinct grading scale.[36]
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By far the most well-known coloured diamond, the Hope Diamond Diamond has a broad band gap of five.five eV equivalent to the deep ultraviolet wavelength of 225 nanometers. Consequently pure diamond really should transmit visible mild and show up as a transparent colorless crystal. Shades in diamond originate from lattice defects and impurities. The diamond crystal lattice is extremely powerful, and only atoms of nitrogen, boron, and hydrogen can be introduced into diamond during the growth at sizeable concentrations (nearly atomic percents).
延伸閱讀>>無可取代的「鑽石之王」，海瑞溫斯頓為永誌不渝的愛情承諾鑽戒臻選
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切割完的鑽石，往往只有原石的一半重量。為了在鑽石保留最多的重量，或者要避開原石上的雜質，有些鑽石切割時會犧牲完美的切割比例。
Coatings are ever more made use of to present a diamond simulant such as cubic zirconia a more "diamond-like" overall look. A person these compound is diamond-like carbon—an amorphous carbonaceous materials which has some Actual physical Attributes just like All those of your diamond.
Amid Quaker Christians, especially Conservative Good friends and Holiness Buddies, the wedding ring is traditionally not worn as a component of their testimony of simplicity.[29] Amid Quaker teams that do use wedding rings, the following wording is utilized by the bride and groom as they are exchanged: "Using this ring, I thee wed.
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戒指戴法有哪些？如何正確展示戒指含義，同時襯托出自己的個性呢？不同戒指戴法，左右手的象徵意義相同嗎？不同手指應配戴哪種類型的戒指？看完本篇文章馬上揭曉！
一般的方法是把鑽石按偏黃的程度分為不同的等級，把樣品與已知色級的比色石對比確定，以D級最高，Z最低。
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Most not too long ago, yellow gold engagement rings are capturing the eye of people that appreciate the way in which this steel’s lovely warm glow complements engagement ring settings with colored gemstones.