Rough Diamond

ColorTypically colorless to light yellow or brown
TransparencyTransparent to opaque
LusterAdamantine (brilliant and reflective)
Hardness10 on the Mohs scale
Density3.5 - 3.53 g/cm³
Refractive Index2.42
CleavagePerfect octahedral
FractureConchoidal
Crystal SystemIsometric (cubic)
HabitTypically forms in octahedral crystals, but can also be dodecahedral or cuboid