Allotropes of carbon dispersion of light of diamond make it useful for both industrial applications and jewelry. Diamond is the hardest known natural mineral. This makes it an excellent abrasive and makes it hold polish and luster extremely well. No known naturally occurring substance can cut (or even scratch) a diamond, except another diamond. The market for industrial-grade diamonds operates much differently from its gem-grade counterpart. Industrial diamonds are valued mostly for their hardness and heat conductivity, making many of the gemological characteristics of diamond, including clarity and color, mostly irrelevant. This helps explain why 80% of mined diamonds (equal to about 100
Britain's Hardest South Wales. Previous Welsh amateur boxing champion and professional boxer coached by Tex Woodward who also appeared supporting Leighton on the show. BoxRec Britain's Hardest Britain's Hardest was a game show first broadcast on Sky One in 2004. It was presented by "EastEnders" actor Steve McFadden and mixed martial arts fighter Ian Freeman. In the show six men competed against each other until only one remained and was declared "Britain's hardest", meaning toughest man. The prize was £10,000. The tasks the contestants had to complete included gruelling physical challenges, like hanging from a suspended object by their fingertips for the