More than anything, being backed by a redeemable asset. For example, until lately, you couldn't go to PAXOS and demand them to give you USD in exchange for your coin. Now you can, but that's still not true for Tether, which is not even audited.

When it comes to competing with PAXOS, then, the main difference is that we're backed by an asset. You can exchange your DIAM for physical diamonds at a discount... which means that you get more than your currency's worth in physical stones.