Little Known Facts About 訂婚.
Little Known Facts About 訂婚.
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或許有人會想：「我和伴侶是不是一定要買對戒？」但對戒不僅適合即將步入婚姻的伴侶，也非常適合那些在重要時刻希望象徵彼此承諾的人們。無論是訂婚、周年慶或是其他特別的日子，對戒都是紀念彼此關係的完美選擇。對戒不僅僅限於婚姻，更適合作為兩人關係的見證。
Diamonds Minimize glass, but this doesn't positively detect a diamond simply because other resources, such as quartz, also lie over glass within the Mohs scale and might also Reduce it. Diamonds can scratch other diamonds, but this can lead to damage to one or both equally stones. Hardness tests are occasionally Employed in useful gemology because of their probably damaging nature.[31] The acute hardness and substantial value of diamond signifies that gems are generally polished gradually, employing painstaking common strategies and greater awareness to detail than is the case with most other gemstones;[32] these are likely to result in incredibly flat, hugely polished sides with exceptionally sharp aspect edges.
Above the graphite–diamond–liquid carbon triple place, the melting point of diamond boosts gradually with expanding stress; but at pressures of many GPa, it decreases.
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A round brilliant Slice diamond set in a ring Probably the most familiar takes advantage of of diamonds currently are as gemstones employed for adornment, and as industrial abrasives for slicing difficult materials. The marketplaces for gem-grade and industrial-quality diamonds worth diamonds differently.
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The acute hardness of diamond in selected orientations can make it handy in elements science, as During this pyramidal diamond embedded during the working surface area of a Vickers hardness tester. Diamond is the hardest product on the qualitative Mohs scale. To perform the quantitative Vickers hardness exam, samples of elements are struck that has a pyramid of standardized Proportions utilizing a identified power – a diamond crystal is utilized for the pyramid to permit a wide range of supplies to become tested.
Diamonds are dated by analyzing inclusions using the decay of radioactive isotopes. Depending on the elemental abundances, you can consider the decay of rubidium to strontium, samarium to neodymium, uranium to steer, argon-forty to argon-39, or rhenium to osmium. People located in kimberlites have ages starting from one to three.five billion decades, and there is usually multiple ages in the identical kimberlite, indicating many episodes of diamond development. The kimberlites 介指 them selves tend to be young.
鑽石的色澤會因為化學上的雜質而有所偏差。完全純正的鑽石應該是透明無色的。鑽石偏向不同的顏色會影響它的價值。絕大部分的鑽石都是因為帶有氮原子而偏黃。白鑽越偏黃，價值便越低。但是偏粉紅或藍的鑽石價格卻較高。顏色強烈偏向粉紅或藍的鑽石可能價值連城。
Integrity is on the crux of De Beers Forevermark, a diamond brand name with more than 130 decades of diamond know-how in addition to a community of about 450 trustworthy independent jewelers throughout the U.S. Each individual with the brand name's diamonds undergoes a rigorous seventeen-action variety method to meet the company's Fantastic expectations. Each and every diamond is organic, responsibly sourced, conflict-free, hand-selected, untreated, and cut and polished by learn artisans. These meticulous specifications imply less than one % of the planet's all-natural diamonds is usually inscribed as De Beers Forevermark.
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