In 1988, the De Beers Group founded their consolidated mines, forming De Beers unrivaled legacy for diamonds. As the world's most well-known diamond expertise, De Beers hand-selects the rarest natural diamonds that are as unique as its owner. De Beers has also introduced the first universal diamond grading system in the industry - the 4Cs, which represents cut, color, clarity and carat. De Beers believes in building a sustainable diamond mining system. With effective implementation and alignment of management, it ensures occupational safety, as well as prevention from waste, progressive rehabilitation and environmental conservation. All these factors made De Beers successful as a leading diamond company.