Amsterdam Black Diamond - Largest Monocrystalline Natural Black Diamond in the World

Cut from a 55.85-carat rough black diamond discovered in South Africa in 1972, the Amsterdam black diamond is a 33.74-carat, pear-shaped, fancy black diamond, christened in honor of the 700th anniversary of the City of Amsterdam

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Amsterdam Black Diamond - Largest Monocrystalline Natural Black Diamond in The World, PDF, Gemstone

This huge black diamond just sold for $4.3 million. No one knows where it came from.

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THE AMSTERDAM DIAMOND

Out of all the colours that natural diamonds can be, i.e., white, green, blue, yellow, red, black, etc., what colour in natural diamonds are the most common and least common? - Quora

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