What kind of information is on a GIA diamond report and what does it mean?

A GIA report contains a full scientific and unbiased assessment of your diamond’s 4Cs. GIA
 tests every diamond submitted to establish its authenticity as a diamond and whether it’s been
 subjected to treatments. GIA reports provide a full description of the diamond, including color, 
weight, measurements, and cutting style, and will disclose any known treatments.
 
Watch our video tutorial, which highlights the features and benefits found on a GIA report, and 
what that means for you and your diamond.