Diamond is a form of pure carbon with its atoms arranged in a crystal.

In 2014, a man from Arizona stole a package containing a $160,000 diamond and traded it in for $20 worth of marijuana. ¹⁾

Diamonds are the hardest naturally occurring material on Earth. Their hardness value is 10 on Mohs' Scale of Hardness. ²⁾

Diamond is the best heat conductor, 5 times better than the second-place silver. ³⁾

Diamond's melting point is 3820 degrees Kelvin, the highest of any material. ⁴⁾