That is the multi-colored, red, green, and blue, image of a diamond that you’ll see on the diamond grading report for every Brian Gavin Signature diamond. They still don’t provide those measurements for fancy shape diamonds.Īnd only the AGS Laboratory uses Angular Spectrum Evaluation Technology (ASET) to measure the brightness of diamonds. Imagine how excited we were when the AGS Laboratory introduced their Light Performance grading platform in June of 2005! Interestingly enough, it was only then that the GIA-GTL finally decided to add the crown and pavilion measurements to the diamond grading report for round diamonds. Which is why Brian Gavin jumped at the chance to submit his diamonds to the AGS Laboratory for grading! Finally, there was a gemological laboratory that made it possible to show our clients just how amazing Brian Gavin Signature diamonds are cut! The reality is that the vast majority of diamonds you’ll find out there are sub-par by our standards for cut quality. The majority of diamond dealers were against this information being published, because doing so would make it possible for people to better understand light performance. Peter Yantzer wanted to create a report that revealed the crown angle, crown height, pavilion angle, and pavilion depth measurements. They were only revealing the total depth and table diameter measurements. The Differences between AGS Ideal vs GIA Excellent cut diamonds:Īt the time, the GIA was not providing people with the crown and pavilion measurements for round brilliant cut diamonds. Because he wanted to provide consumers with a more in-depth analysis of the diamonds they were buying. In the late 1990’s former GIA Lab Director, Peter Yantzer, left the GIA to open the American Gem Society Laboratory. The American Gem Society (AGS) is a membership organization, which promotes a foundation of morals and ethics for industry members to adhere to. The GIA Gem Trade Laboratory (GIA-GTL) was launched a short time later, and provided diamond dealers with a standardized report which reflects the characteristics at the time the diamond is graded. He created the Gemological Institute of America (GIA) in the hopes of creating a systematic method of describing diamond characteristics and quality, which could be used by diamond dealers around the world. The GIA and AGS are actually sister organizations of sorts, both being started in the 1950’s by Robert M. While the GIA Laboratory has been around longer, the AGS Laboratory introduced the concept of an overall cut grade first. However, when it comes to recognition within the realm of super ideal cut diamonds, the King of the Hill is definitely the American Gem Society Laboratory (AGSL). This is probably because they’ve been around the longest, thus they benefit from worldwide recognition. The GIA Laboratory definitely seems to be the most recognized gemological laboratory in the world. We definitely want the diamond to be eye clean, so probably something in the VS-2 to VS-1 clarity range.” GIA vs AGS, which gemological laboratory is best? In view of that, I think that something in the F-G color range will be perfect for her.
My girlfriend is a professional photographer, so she tends to be really good at judging diamond color. However, it appears to me that the AGS provides more detail regarding light performance.īy the way, I’m looking for a hearts and arrows cut diamond, weighing between 1.20 – 1.49 carats. From what I’ve read online, it looks like the AGS & GIA are the most widely recognized. All of the jewelry stores in my area, seem to only offer diamonds graded by the GIA, IGI, or EGL, and only one seemed to be familiar with the AGS Laboratory. “I’m wondering whether you can shed some light on the differences between AGS Ideal vs GIA Excellent cut diamonds. Platinum Setting What is the lowest color Brian Gavin recommends?.Types of 3 Prong Martini Settings for Studs.Are your VS2 & SI1 diamonds always eye clean?.2 carat diamond solitaire engagement rings for 30K.Differences in Asset Images for High Performance Diamonds.