When comparing items with a socket (Socketed) the value of gem is not included. It can easly be missread 
Example :
Value left : 270 Int +40 Int = 310
Right : 258.
Difference should be -52.
Difference shown : -12.
https:// imgur .com/a/oPvEGRz
When comparing items with a socket (Socketed) the value of gem is not included. It can easly be missread
Example :
Value left : 270 Int +40 Int = 310
Right : 258.
Difference should be -52.
Difference shown : -12.
https:// imgur .com/a/oPvEGRz