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Diamond Secrets: Crown Jewels Gem Formed 400 Miles Deep

June 28, 2020 - General
The rarest diamonds formed far below the surface. Source: Björn Wylezich / Adobe Stock

Discovered at the Premier No.2 mine in Cullinan, South Africa, on January 26, 1905, the famous “Cullinan diamond” is the largest gem-quality diamond ever found. Weighing an incredible 3,106.75 carats, this monstrous and deeply-ancient stone was eventually cut into smaller stones


Source: origins

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