De Beers Diamond Jewellers invites us to an exclusive masterclass in Hong Kong where Andrew Coxon, president of the De Beers Institute of Diamonds, shares some surprising facts about these precious stones.
1. When a rough diamond is transformed, it loses almost half its weight
Naturally beautiful rough diamonds are rarer than naturally beautiful polished diamonds. You can make any diamond look pretty after a good polish, but you'll sacrifice half of its weight in the process. In some of the De Beers mines, such as the ones in Namibia, you find naturally beautiful rough diamonds washed up along rivers.