Not known Details About 求婚戒指
Not known Details About 求婚戒指
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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。
Artificial diamonds may be developed from superior-purity carbon below substantial pressures and temperatures or from hydrocarbon gases by chemical vapor deposition (CVD). Purely natural and synthetic diamonds are most commonly distinguished employing optical strategies or thermal conductivity measurements. [citation needed]
Impurities in purely natural diamonds are because of the presence of organic minerals and oxides. The clarity scale grades the diamond dependant on the colour, sizing, place of impurity and quantity of clarity obvious under 10x magnification.[63] Inclusions in diamond can be extracted by optical techniques. The process is always to just take pre-enhancement photographs, pinpointing the inclusion removing aspect And at last removing the diamond facets and noises.[sixty four]
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Diamonds are dated by analyzing inclusions using the decay of radioactive isotopes. Dependant upon the elemental abundances, one can think about the decay of rubidium to strontium, samarium to neodymium, uranium to guide, argon-forty to argon-39, or rhenium to osmium. All those found in kimberlites have ages ranging from one to three.five billion many years, and there could be many ages in the same kimberlite, indicating several episodes of diamond formation. The kimberlites themselves are much more youthful.
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Diagram of the volcanic pipe Geological evidence supports a product where kimberlite magma rises at four–20 meters per second, creating an upward route by hydraulic fracturing on the rock. Because the pressure decreases, a vapor section exsolves through the magma, which helps to keep the magma fluid.
由於全球的鑽石鑑定報告並沒有一個統一標準，拿不同份認證書的鑽石等級與鑽石價格進行比較是沒有意義的；在購買鑽石前，請記得慎選欲購買的鑽石是否附有公信力高、評鑑流程嚴謹的機構認證書，並建議實際現場觀測鑽石的顏色。
設計典雅精巧，男戒則低調於內側設計了一朵花，女戒設計上靈感來自桂冠，藉此兩相呼應，是命中注定的組合。
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At area temperature, diamonds do not react with any chemical reagents together with sturdy acids and bases.