On Friday, October 23, GIA Laboratory released a statement notifying the trade and public of a system breach that allowed a hacker to change over 1000 GIA Diamond Grading Reports to reflect different color and clarity grades that would be a benefit to the owners of those diamonds and reports. GIA has invalidated these reports and released a list of the diamonds involved. If you recently purchased a diamond in the size range of 0.40 carat to 5.50 carats that is accompanied by a GIA Diamond Grading Report, there is a chance (remote, albeit) that you could be affected.