The De Beers Centenary is the fifth world’s most luxurious diamond. Its price is $100 million and its weigh is $273.85 carat. It has many colors and it is the world’s most expensive diamond. The Centenary Diamond was revealed in the Premier Mine on 17 July 1986 using their X-ray imaging scheme.
The De Beers Centenary Diamond is, at 273.85 carats the third-largest diamond to have been fashioned in the Premier Mine. The Centenary Diamond is rated in color as grade D color by the Gemological Institute of America, which is the uppermost grade of colorless diamond, and is internally and externally faultless.
Cutting such an immense and expensive diamond required expertise and a significant investment. The primary efforts were done by hand rather than with a laser or saw so as not to heat or vibrate the diamond. The shape was described as, efficiently, the Centenary Diamond is formed like a heart-shape, but it does not have a groove.
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