The Earth itself is around 4.65 billion years old, so not much older than black diamonds. Carbonados are extremely rare and have only ever been discovered in Brazil and the Central African Republic.

Rare Disney VHS Tapes: Does the Black Diamond Have Value? Hey, all VHS tapes are getting pretty rare, am I right? But ...

Only known to exist in Brazil and the Central African Republic, “carbonado” black diamonds date from around 2.6 to 3.8 billion years ago and are an extremely rare natural occurrence.

Instead of being red or green, the skin is jet black. Black Diamond apples (Malus Domestica) are a rare variety of Chinese ...