<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjQtMDUvYjM4ZGU3ZjQtZjM5Ny00ODM3LWE3MmEtYTQ3MjgxOWQxNDZlLmpwZw==.jpg"></p><p>Diamond Standard Co. has introduced a blockchain payments system that uses diamonds as backing collateral for transactions.</p>