Bitcoin diamond aims to raise bitcoin block size limit . Bitcoin diamond Hard Fork successful . In my opinion i think that bitcoin diamond is more profitable than bitcoin.
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Pros
There a total supply of 210 million Bitcoin Diamond . The price will be set a rate of 1BTC=10 BCD i,e Bitcoin Diamond which is 10 times more than any other version of Bitcoin. Bcd is having privacy feature which no fork of Bitcoin has it yet.
Cons
In Bcd , there are very low entry barriers for minners , developers, users and traders certainly BCD are not match to BTC.