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Top 10 World’s Rarest & Most Valuable Gems Throughout history, humans have adorned themselves with jewelry - first made from bits of s
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月の誕生石。 ブラジル産の青〜紫の石。 白色灯光の下では赤色を示す。 クリソベリルの中でも光の波長に よってカラーチェンジする 結晶を宝石名としてこう呼ぶ。 この宝石名は旧ロシア帝国の 皇太子アレキサンドル二世の…
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