'Conflict' diamonds can be viewed as another way for DeBeers and others to control the trade, by limiting the supply of diamonds into the market. Global Witnes

'Conflict' diamonds can be viewed as another way for DeBeers and others to control the trade, by limiting the supply of diamonds into the market. Global Witness, the organisation who pushed for the 'blood diamonds' campaign, disavowed it in 2011, because the scheme did not actually provide effective guarantees that the diamonds sold were not blood diamonds. Others have pointed out the strange absence of any 'blood emeralds' scheme, even though they are often sourced from the same corrupt organisations and countries. But the fact that natural emeralds are much rarer than diamonds means that no-one needs to artifically limit their supply...