In 1988, De Beers Group founded their consolidated mines, forming DeBeers unrivaled legacy for diamonds. As the world's most well know diamond expertise, De Beers hand-select the rarest natural diamonds unique as its owner. They have also introduced the first universal diamond grading system in the industry, the 4Cs, cut, color, clarity and carat. De Beers believes in building a sustainable diamond mining system. With effective implementation and alignment of management, they ensure occupational safety, as well as aspects in preventing waste, progressive rehabilitation and environment conservation. All these factors made De Beers successful as a leading diamond company.