Diamond labs are not always equal
The Gemological Institute of America (GIA) was founded in 1931, developing the famous four C's of diamonds (Cut, Color, Clarity and Carat weight). These four C's have been adopted around the word to set a standard by which people buy and sell diamonds.
There are instances where opinions vary between labs or individuals. The following is an example of why we have a GIA Graduate Gemologist verify the grading of every diamond before it is purchased.
Cut: Very Good
This is an extreme case of variation in the grading of a diamond, but does demonstrate the importance of having your diamond purchase inspected by a qualified gemologist prior to purchase. A fine example of why we inspect all diamonds prior to purchase.