RE:RE:RE:RE:RE:RE:RE:RE:CLARACertainly a manufacturer would know which mine any particular stone came from by reading the blockchain pedigree. So if a stone purchased fhrough Clara shows that its origin is say, Jwaneng Mine, then they would know that ODC (or DeBeers) is dealing with Clara. Either way I agree with you that it would be difficult to prevent that sort of knowledge from seeping into the market.
Who knows, maybe that's what is beginning to happen?