Carbonados, universally acknowledged as the 'Black Diamond,' are a naturally occurring polycrystalline form of precious stone diamond established in alluvial deposits in the African & American continental regions of Central African Republic and Brazil. Its natural color available is black or dark grey, and it is more permeable or porous compared to the other diamonds. Unlike other natural preserved polycrystalline diamonds, carbonado has no cloak of derived insertions and its carbon isotope value is very much steep way below. Furthermore, carbonado show cases strong luminescence characterized by nitrogen and by voids present in the crystal network. Study of the luminescence reveals that radioactive insertions were made in the structure formation process of carbonado.
Fancy Black Diamonds