To view the color distinction among treated, natural and created, use the transmitted, reflected and fiber-optic light source. Use 10X magnification to view the stone’s general appearance. However if you still have any doubts get your black diamonds verified by reputed gem-testing laboratory.

The created diamonds are generally synthetic black crystals (non-transparent), black onyx, cubic zircon, hematite and imitation hematite. Their unique gemological properties can help you distinguish them easily.

Black diamonds occur in the crudest forms and their physical properties fluctuate from dense to porous. Compared to the other colorless diamonds, black diamonds have scratch marks.  The treatments meliorate the geological characteristics of the diamond.

There are three types acknowledged as the “black” diamond: 1. Natural Colored Black Diamonds; 2. Heat-treated Black Diamonds- created under high temperature; 3. Irradiation treated Black Diamonds. The naturally colored ones are very rare; out of 10,000-mined diamonds, only one is a naturally colored black diamond. Moreover, Natural black diamonds have heavy inclusions, while pure black, a less common sort, virtually resembles black onyx.