One common comment RJK receives regarding diamonds is that the last 5 years has been terrible for the sector.  Resource investments, in general, are cyclical, and most diamond mines are still very, very profitable, just less so than 4 years ago.  Michael McCrae discusses how diamonds appear to be set to rebound:

0:15-2:00 – Michael McCrae introduces his experience as the mining audience and data intelligence manager for KITCO
2:00-2:50 – 5 years of declines in diamonds stocks, now showing signs of a turn around
2:50-5:58 – Supply vs demand statistics, and data showing no replacements for closing mines.  Shows supply declining, and income growth increasing, with no new mine output
5:58-9:43 – Fuel cells and platinum demand
9:43-15:05 – Mining Suppliers digitizing