09.06.2015 - Foto 9, Gutachten IGI!!! AGS vs GIA – Cut grading. In our opinion, IGI simply does not function at the standards that reputable diamond laboratories hold themselves accountable to. It provides you with peace of mind. Please use the form to the right, and we'll respond ASAP! However, there is another important element that needs to be considered and that is the diamond certification. The Gemological Institute of America's (GIA), HRD Lab's, American Gem Society's (AGS), and Gem Certification and Assurance Lab's (GCAL) reports command the highest premium in the industry. It came up with the 4Cs of diamond grading. IGI certifications can be as far as three grades off from GIA certifications. In our experience, some IGI laboratories are weaker than others. They, however, use a completely different method for grading diamonds. Before we root for somebody, let us give you some context of why jewellers actually choose IGI certified diamonds rather than GIA or GCAL Certified ones. Fashion & Beauty. Joined Jan 1, 2011 Messages 476. May 21, 2017 #3 Thank … The IGI is most popular in Asian countries and Europe. Both of these diamonds have an “SI2” clarity grade. The American Gem Society was founded in 1934 as a trade group of jewelers, appraisers, and dealers. Both the GIA and the AGS look for the same attributes when grading diamonds, e.g. The International Gemological Institute (IGI) is also a well-known diamond lab in the industry. At Belgium Diamonds we are aware that certificates and lab grades are conducted by independent groups and in many cases determined by market trends. Not disastrous, but not well cut either. Unfortunately, too many of them have decided to go the route of manipulation and trickery instead of coming up with an alternative way to increase their margins (by providing a unique experiences or special products). The table above shows how a GIA grading would translate into an AGS grading and vice versa. IGI will not issue reports for diamonds with non-permanent treatments. Even the largest jewelry insurance underwriter writes: “The most reliable diamond certificates (also called diamond reports) come from the Gemological Institute of America (GIA) and the American Gem Society (AGS). Predictably, IGI New York downgraded the three “new diamonds” from their previous grades from IGI Mumbai, but matched the very generous grades from IGI Antwerp on the other two stones. Owing to the inconsistencies between different IGI labs around the world and the fact that their color and clarity grades seem to be inflated when compared to the GIA diamonds, many sellers will not stock IGI graded diamonds. Regardless of location or marketplace, an authentic IGI Laboratory Report is the common language of trust and … Mostly the IGI serves larger volume jewelry chains and mass-market diamonds. As for the IGI, as Davide points out, it's not that they are cheaper than GIA and AGS graded stones, when comparing similar grades, the stones just don't measure up. The consumer or buyer might be tricked to thinking that IGI diamonds are cheaper which not the case is. The problem is that we believe IGI reports don’t deliver on that. There is a whole host of grading labs around the world. Well actually, jewellers get their stones graded by IGI for a reason. Please check out James Allen's 3D 360 degree image technology for assessing the cut of GIA graded diamonds. Because of this, many experts do not view the IGI as performing to the high-quality standards of other reputable diamond labs such as the AGS and the GIA. Many diamond shoppers will have already done their homework and will know to evaluate their stone based on the 4Cs. Dual-certified diamonds were found using the GIA report inscription field, just as you noted.