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Diamond color is usually the result of selective absorption of incident white light. The unabsorbed portion of this light is transmitted through the diamond and is interpreted by the human vision ...
この75.47カラットのHooker（フッカー）エメラルドは、オスマン帝国最後のスルタンであったアブドゥル·ハミド2世が着用したもの。 - Chip Clark、提供：Smithsonian Institution, National Museum of Natural History ...
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