The name diamond is deriving from the ancient Greek word it means Invincible. Diamond is a crystalline carbon that is the hardest of light make diamond useful for industrial applications and jewelry. It is usually nearly colorless.
The popularity of diamonds has risen since the 19th century because of increased supply improved cutting and polishing techniques, growth in the world economy and innovative and successfully marketing companies Gem diamond judged by “4 Cs”
- Carat Weight
Approximately 130 million carats [26,000 kg] are mined annually with the total value of nearly USD $9 billion. 49% of natural diamonds have been discovered and originated from central and southern Africa although the minerals have been discovered in Canada, Russia, Brazil, Australia and India.