Think a twice about it
Diamond
Diamond is harder then iron and more beautiful then glass...
A thing which is Live ,as we use it Everyday for watching this Beautiful Nature,and has high auto-focusing strength!!! so what is it??
Sometimes I am harder than a rock, other times I am almost weightless. Everyone wants me, but then gives me away. Some people have a lot, others have very little. I come in many different colors all over the world. What am I?