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坚硬的岩石
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欢迎您来到科学的殿堂!. 坚硬的岩石. 岩石按成因分类:. 库里南二号:在库利南切磨成的 9 粒大钻中,次大的一粒叫“库利南二号”,也称“非洲之星第二”。重量为 317.4 克拉,方形,共 64 个面。是世界第二大钻石。现镶在英王冠下方的正中.
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坚硬的岩石
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欢迎您来到科学的殿堂! 坚硬的岩石
库里南二号:在库利南切磨成的9粒大钻中,次大的一粒叫“库利南二号”,也称“非洲之星第二”。重量为317.4克拉,方形,共64个面。是世界第二大钻石。现镶在英王冠下方的正中
“世纪”:戴比尔斯钻石公司成立于1888年,在其成立100周年之际,即1988年3月11日,在南非著名的盛产宝石级大金刚石的“普列米尔”(Premier)金伯利岩管发现了一颗重599.00克拉的特优质宝石级金刚石,被命名为“百年”。 这颗金刚石纯洁无瑕,颜色极佳,呈淡玫瑰色,异常美观,是难得的稀世珍宝。 “百年”金刚石,经过高级专业切磨师耗用三年的时间,精心研究设计,被切割 、加工和琢磨成一颗重273.85克拉的巨钻,被命名为“世纪”(The centenary diamond)钻石
戴比尔斯千禧之星(上排中):世界上最为著名的钻石之一。重达203.04克拉的De Beers Millennium Star是从一颗777克拉的钻坯上切割下来的,由内而外都完美无暇
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