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鑽石（古希臘語：ἀδάμας；法語、德語：Diamant；英語：Diamond；俄語：Алмаз），一種由碳元素組成的礦物，是石墨的同素異形體，為五種樞要寶石的一種，化學和工業應用中稱為金剛石。鑽石是碳元素組成的無色晶體，為已知硬度最高的天然物質。[3]
2022年11月27日 · 🎵 Follow the official 7clouds playlist on Spotify : https://lnkfi.re/7cloudsSpotify 🎧 Rihanna - Diamonds (Lyrics) "Shine bright like a diamond, We're beaut...
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GIA has been grading laboratory-grown diamonds since 2007. Beginning July 1, 2019, GIA Laboratory-Grown Diamond Reports and identification reports no longer use the term “synthetic.”. The GIA Laboratory-Grown Diamond Report includes the standard GIA color, clarity and cut grading scales for reference purposes.
diamond cut diamond. used to describe a situation in which a sharp-witted person meets their match. 棋逢敌手，势均力敌. diamond in the rough. North American term for rough diamond. (北美)。. 同 rough diamond.
Diamond is a gemstone formed by cutting a raw diamond.Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light — giving the diamond its characteristic "fire" — make it useful for industrial applications and desirable as jewelry.
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