センティナリー・ダイヤモンド
1. Centenary DiamondThe De Beers Centenary Diamond is, at 273.85 carats (54.77 g), the third-largest diamond to have been produced in the Premier Mine. The Centenary Diamond is rated in color as grade D color by the Gemological Institute of America, which is the highest grade of colourless diamond and is internally and externally flawless. It was named the Centenary Diamond as it was presented in the rough for the Centennial Celebration of De Beers Consolidated Mines on May 11, 1988.
Read “Centenary Diamond” on English Wikipedia
Read “センティナリー・ダイヤモンド” on Japanese Wikipedia
Read “Centenary Diamond” on DBpedia
Read “Centenary Diamond” on English Wikipedia
Read “センティナリー・ダイヤモンド” on Japanese Wikipedia
Read “Centenary Diamond” on DBpedia
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