A rough diamond is a diamond rock which has not been cut or processed. They come in a variety of naturally occurring shapes including octahedrons, cubic and triangular. A raw diamond or rough diamond can also be a type of diamond which is not fully developed or can have less...
To the uneducated eye,  rough diamonds  look more like shards of glass washed up on the beach: They are oily and dull, and come in colors ranging from yellow through green to brown....
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