Giant diamond whose cuts adorn the Crown Jewels was formed 400 miles below the Earth surface
The giant diamond cut into gems that now adorn the Crown Jewels was formed 400 miles below Earth’s surface — three times deeper than other precious stones. Analysis of similar diamonds by the Gemological Institute of America revealed that the Cullinan was a ‘super-deep’ diamond — and one of the rarest objects on Earth. The largest … Read more