I just tried googling it, and other than the website itself coming up as a result there was literally no other links about this I searched for "Diamonium Crypto" and "Diamonium ICO" and literally nothing comes up, other than a link to some meetup they organised That tells me that nobody is talking about it - no sites have reviewed it and no forums are even talking about it so if nobody is discussing it then that's generally a sign it's not worth your time
High risk. Strategic partnerships are not that inspiring. Up against some strong projects also attempting to increase TPS, some with potentially unlimited transactions per second. Not sure if their drive to “decimilise” cryptos is that meaningful at all when alternatives are out there eg Satoshis, USD equivalent values etc.