carbonado

Black diamonds -- properly Carbonado, are real diamonds, with our without enhancements.

You can read more about Carbonado, below.

Carbonado diamonds are simply more porous than other types of diamonds. They are found in geology different from other types of diamonds: there is no kimberlite or other 'diamond-indicator' mineral present.

There are several theories about how carbonado diamonds are formed, which you can read, below.

Coal. Carbonado

Natural black diamonds are called Carbonado. From Wikipedia: "Carbonado diamonds are typically pea-sized or larger porous aggregates of many tiny black crystals."

Read more, below.