Geologic provinces of the globe. The pink and orange parts are shields and platforms, which jointly represent cratons. Diamonds are considerably from evenly dispersed more than the Earth. A rule of thumb called Clifford's rule states that they are nearly always present in kimberlites around the oldest part of cratons, the secure cores of continents with normal ages of 2.5 billion yrs or more.[68][seventy three]: 314 Nonetheless, you will find exceptions. The Argyle diamond mine in Australia, the most important producer of diamonds by body weight on this planet, is found in a very mobile belt, also known as an orogenic belt,[seventy four] a weaker zone surrounding the central craton which has undergone compressional tectonics.
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以鑽石、貴金屬這樣堅固且不受時空侵擾的物質所製成的對戒，更是代表了歷久彌新且堅若磐石的情感。
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Diamond powder of the correct grain size (about 50 microns) burns which has a shower of sparks following ignition from a flame. As a result, pyrotechnic compositions based on synthetic diamond powder may be prepared.
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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。
由於金剛石的硬度極高且導熱性極高，用於沙紙、鑽探、研磨工具之上，可以用來切削和刻劃其他物質，以及大型積體電路等散熱板上。
Unsustainable diamond mining in Sierra Leone. Documentary as A part of the Vrinda Project for Wikibooks In some of the much more politically unstable central African and west African nations, revolutionary groups have taken control of diamond mines, using proceeds from diamond revenue to finance their operations. Diamonds offered by this method are often known as conflict diamonds or blood diamonds.[131]