近年流行互相幫對方買結婚戒指。當看到經常戴在手上的戒指，就會想到這是對方買給自己的禮物，心裡就會升起一股暖意。
Colored diamonds include impurities or structural defects that trigger the coloration, although pure or virtually pure diamonds are transparent and colorless. Most diamond impurities substitute a carbon atom inside the crystal lattice, called a carbon flaw. The most typical impurity, nitrogen, triggers a slight to intensive yellow coloration based upon the type and focus of nitrogen existing.[36] The Gemological Institute of The usa (GIA) classifies very low saturation yellow and brown diamonds as diamonds in the conventional colour selection, and applies a grading scale from "D" (colorless) to "Z" (light yellow). Yellow diamonds of large shade saturation or a unique color, such as pink or blue, are called fancy coloured diamonds and tumble less than a different grading scale.[36]
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Most other diamonds display extra proof of several development levels, which create inclusions, flaws, and defect planes within the crystal lattice, all of which impact their hardness. It is possible to treat standard diamonds under a mix of significant stress and high temperature to make diamonds which are more challenging compared to the diamonds Utilized in hardness gauges.[30]
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A preferred engagement ring metallic amongst Blue Nile buyers is definitely platinum (or white gold for people 鑽戒 who need a platinum-evaluate a lower Price). During the last several years, on the other hand, rose gold engagement rings are a quick-growing craze. Rose gold was normally used in options during the late nineteenth century, and is appreciated right now for its In a natural way passionate appeal that especially fits rings with classic-inspired variations.
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The De Beers enterprise, as the globe's biggest diamond mining firm, retains a dominant place from the business, and it has finished so given that before long right after its founding in 1888 via the British businessman Cecil Rhodes. De Beers is at present the whole world's greatest operator of diamond output facilities (mines) and distribution channels for gem-high-quality diamonds. The Diamond Buying and selling Enterprise (DTC) is really a subsidiary of De Beers and markets tough diamonds from De Beers-operated mines. De Beers and its subsidiaries very own mines that create some forty% of annual world diamond output.
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每件作品都以手工精美地包裝在免費的寶格麗標誌禮品盒中，設計靈感來自羅馬之美。
鑽石切割法的演進 切割指金剛石是如何從原先開採的石礦中切割成寶石。切割往往是最能影響鑽石的品量及價值的一個指標，但是它卻沒有單一的分級方法。
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Unsustainable diamond mining in Sierra Leone. Documentary as A part of the Vrinda Project for Wikibooks In a lot of the far more politically unstable central African and west African countries, revolutionary teams have taken control of diamond mines, employing proceeds from diamond revenue to finance their functions. Diamonds bought by means of this process are known as conflict diamonds or blood diamonds.[131]