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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Strawn-Wagner Diamond ： ウィキペディア英語版 Strawn-Wagner Diamond The Strawn-Wagner Diamond is the only perfect diamond found so far in the world,〔(Jetsetter Magazine )〕 weighing 3.09 carat (620 mg). It was found in 1990 by Shirley Strawn of Murfreesboro, Arkansas, in the Crater of Diamonds State Park public search field. It was cut to 1.09 carats (220 mg) in 1997, and graded a "perfect" 0/0/0 by the American Gem Society in 1998 and graded perfect by the Gemological Institute of America, making it the first diamond ever to receive such an AGS grading. The diamond is considered one-in-a-billion, according to Peter Yantzer, the AGS Laboratory Director. The diamond is currently on exhibit at the Crater of Diamonds State Park in Murfreesboro, Arkansas after the park purchased it for $34,700. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Strawn-Wagner Diamond」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.