Industries consume about 75% of the diamond industry's production, annually.
The world's largest diamond mine is located in Botswana. It is of open pit construction and the area of it makes it the world's largest diamond mine.
The largest diamond in the world was over 3,000 carats. The diamond was made into 105 smaller ones.
THe largest diamond ever found was 3106.75 carats.
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USA
The United States is the world's largest energy consumer as a country by far, surpassing China easily.
Africa
Botswana
There are two records for that: Centenary Diamond - world's largest colorless, flawless diamond and The Golden Jubilee Diamond - World's largest faceted diamond. These two are among the largest polished (finished) diamonds. The Cullinan diamond is the largest rough gem-quality ever found, at 3,106.75 carats.
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The world's largest gem-quality diamond found to date is the 3,106 carat Cullinan Diamond. It was discovered in Pretoria, South Africa, by superintendent Frederick Wells on 26 January 1905.
The current largest consumer market consists of 28.9 percent of the United States. Japan is the second largest at 8.5 percent and Germany is the third largest at 5.65 percent.