Why Diamond is Face-Centered Cubic Crystal Structure?

FCC means Face-Centeres Cubic structured which is known to all as a crystal structure. 

Carbon variation and arrangement of a metal and which is fully stable allotrope. In whole world diamond is highest precious metal and it contains high corrosion resistance, hardness and also contain high thermal conductivity. Diamond stability is not grater than graphite but it is more use  diamond in our practical purpose. Diamond Application sector in industry, as a cutting tool, hard rigid, knives, cell and so on.

Why diamond is various color?

In a atom all carbon atoms make a strong covalent bong which greater than any other bond. All diamond contain some another metals which is very small amount but not negligible. It is used in various purposes.

Diamond color is blue when it contain boron,

Diamond color is green when it is comes to sun light.

Diamond color is yellow when it  contain nitrogen metals.

Diamond color is brown when it contains some residue which make defects on lattice of diamond structure.

Diamond color and it’s structure depends on mechanical and visual property. Firstly diamond words comes from Greek such as a unbreakable which is more popular in sub-continent area in India as a religious stone for take attention Krishna and others famous person who are saint.  But change of days and years people understand the use of Diamond as polishing, cutting too, more sharpness and hardness and it is becomes a precious metals.