However, black diamonds are typically completely opaque. Rather than having scintillation, these black stones have a captivating, lustrous shine. Because they have such distinctive qualities, black diamonds can't be graded by the 4Cs (diamond cut, color, clarity, and carat) in the same way colorless diamonds can be.
Black diamonds have a unique luster and can exhibit a sophisticated, modern look. They are often used in contemporary and bold jewelry designs.
They are composed of carbon, like other diamonds, but have a different crystal structure and inclusion patterns that give them their dark color.
