is it colorful?
No - pure diamond transmit visible light and appear as a clear colorless crystal.
Diamond
Diamond has a wide bandgap of corresponding to the deep ultraviolet wavelength of 225nanometers. This means that pure diamond should transmit visible light and appear as a clear colorless crystal. Colors in diamond originate from lattice defects and impurities. 
we know that diamonds did not form from coal because UNANSWERABLE can you state any of its properties? Yes -  It is the hardest and least compressible. It has the highest thermal conductivity and the highest sound velocity. It has low adhesion and friction, and its coefficient of thermal expansion is extremely low. Its optical transparency extends from the far infrared to the deep ultraviolet and it has high optical dispersion. It also has high electrical resistance. It is chemically inert, not reacting with most corrosive substances, and has excellent biological compatibility. when was it discovered? Diamonds are thought to have been first recognized many centuries ago 3,000years but most likely 6,000years how is it used politically? UNANSWERABLE what is its status in space? They are very common in space. is there any carbon content in it? Yes - Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. what is meant by the term you mentioned in the last? The diamond cubic crystal structure is a repeating pattern of 8 atoms that certain materials may adopt as they solidify. can you mention one of its mechanical features? Compressive strength. what is the early usage of the above mentioned solid form of carbon? Diamonds have been treasured as gemstones since their use as religious icons in ancient India. where is its market? UNANSWERABLE
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Diamond [SEP] Color
Diamond has a wide bandgap of corresponding to the deep ultraviolet wavelength of 225nanometers. This means that pure diamond should transmit visible light and appear as a clear colorless crystal. Colors in diamond originate from lattice defects and impurities. The diamond crystal lattice is exceptionally strong, and only atoms of nitrogen, boron and hydrogen can be introduced into diamond during the growth at significant concentrations (up to atomic percents). Transition metals nickel and cobalt, which are commonly used for growth of synthetic diamond by high-pressure high-temperature techniques, have been detected in diamond as individual atoms; the maximum concentration is 0.01% for nickel and even less for cobalt.