black diamond rating is a crytocurrency that runs on ethereum block chain although I don't know the total amount of supply in circulation,but I do know it's a good crytocurrency that operates on a good ethereum block chain. black diamond rating can be use to connect services for end users or digital markets, it has a good road map which is believe that it has come to stay for life. In the nearest Fiat currency will be no more and crypto currency will take over the world, black diamond rating has alot of potential to pull the string and overtake btc in the nearest future if it has a good market cap, and I believe it has alot of potentials to do that since it operate on ethereum block chain and be able to create her own wallets for people to believe and embrace it.