The 20.46-carat Okavango Blue Diamond, which is aid to be one of the most fascinating and rarest colour diamonds in existence, has been unveiled for public display at the American Museum of National History.
The 20.46-carat Okavango Blue Diamond, which is aid to be one of the most fascinating and rarest colour diamonds in existence, has been unveiled for public display at the American Museum of National History.
Telling the fascinating story of how minerals in their vast diversity formed on Earth and how humans have used them throughout the millennia for personal adornment, tools, and technology, the halls feature over 5,000 specimens from over 98 countries, each individually mounted and floating in a di.