Can you tell which is a real diamond and which is the cubic zirconian?
Can you tell which ring(s) are junk box jewelry from where I work and which is from a (thankfully) failed engagement I had with someone from a long time ago?
Can you tell which photo was taken with a samsung point and shoot digital and the other photo with a canon rebel x dslr (although both were photoshoped in post-production)?
Can you tell which one is sold at Zales and which one is sold at Forever 21?
Can you tell which one costs $5000 and which one costs $5.99?
Can you tell which one people die for in Africa and which one people in China make for 5 cents a day?
*UPDATE*
As requested, here are the non-retouched images:
