Blue diamonds: These 6 are the world’s most expensive ones
Illustration: Ashrafun Naher Ananna/TBS Creative
Blue diamonds are incredibly rare, making up less than 0.1% of all diamonds. The De Beers Cullinan Blue diamond was cut from a 39.34-carat rough Type IIb diamond crystal, discovered in 2021 at the Cullinan Mine in South Africa and mined by Petra.
Note: One carat equals 0.2 grams in diamond weight
Source: Sotheby's
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