6.88 Carat Natural Black Emerald Diamond GIA

This 6.88-carat diamond displays a Fancy No Overtone Black color grade and is cut in an emerald shape. The stone is untreated natural diamond certified by the Gemological Institute of America. It is offered as a loose stone without a setting. The black coloration in diamonds of this size and saturation typically results from numerous graphite inclusions or structural defects throughout the crystal lattice.