Precious stone
DiamondDescription :
Diamond,
self-possessed of carbon, is the hardest natural substance in the
world. Each carbon atom is enclosed by four adjacent carbon atoms in a
tetrahedral coordination that is the outcome of a covalent bond and a
face-centered display in the cubic unit cell. Diamond is in the
isometric precious stone system, which is being a sign of in the
universally established as an octahedral or cubic crystal form
