I'm not a fan of NFT, it's just those people with huge money in crypto are playing with those claims in NFT. It's also a hype investment just as the ICO.
Although, I'm amazed to see that there's always something new that's brought in the market in different forms of investments.
In the Hacash Chain Hacash Diamond is not another NFT that can be minted easily and link it to an artwork. Every HACASH Diamond (NFT) needs to found using hashpower and also requires to outbid other miners with mined hac to be minted. So, it is a completely different idea.