What is BCD cost?

Excuse me, could you please clarify what you mean by "BCD cost"? Are you referring to the price of Bitcoin Diamond (BCD), a cryptocurrency that emerged as a result of a fork in the Bitcoin blockchain? If so, the cost of BCD can vary significantly depending on market conditions and the exchange where you're looking to buy or sell it. It's important to keep in mind that cryptocurrency prices are highly volatile and can fluctuate rapidly, so it's always a good idea to do your own research and carefully consider your investment decisions.