Diamonds real ,well according to the billboard charts anyway which I'd believe over yall bitches.. http://www.billboard.com/bb/charts/bb200.jsp

It says this at the bottom of the page incase you to lazy to read Chart Key
Sales data provided by Nielsen SoundScan.
Entries with gold backgrounds and italicized numbers for current position are albums with the greatest sales gains this week.
Recording Industry Association of America (RIAA) certification for sales of 500,000 album units (Gold).
RIAA certification for shipment of 1 million units (Platinum).
RIAA certification for net shipment of 10 million units (Diamond).
Certification for new shipment of 100,000 units (Oro).
Certification of 200,000 units (Platino). (clear triangle symbol with 2) Certification of 400,000 units