Why is a diamond grading report from the GIA preferable?
The GIA is one of the oldest and most trusted diamond certification organizations in the world. They have developed and refined many of the universal methods of diamond grading, including the 4 C’s of diamonds. To see a more in depth explaination of how they grage each diamond, you can watch their video in this diamond guide. Another reason why a GIA certificate is preferrable to say, some random certification company used by your local diamond store, is that diamond certificates can often be "rounded up" to the next best level of color, clarity, and sometimes even carat weight. Diamond stores like any other business are out to make money and will always want to use a certificate that shows their diamonds at the highest possible value, at your expense of course.
Internationally recognized, the GIA is the preeminent source of gemological knowledge. The GIA diamond grading report and the GIA diamond dossier are considered the world’s premier credentials for a diamond. Diamond dealers around the globe buy and sell diamonds sight unseen based strictly on the GIA grading report. In fact, some of the most famous diamonds in the world have been graded by the GIA including the Hope Diamond at 45.52cts and the Taylor-Burton Diamond at 69.42cts.
