As proof, we sent the same four diamonds to EGL to get color and clarity ratings – the most subjective scales. From the buyer`s perspective, diamond certification is crucial when buying a diamond. Although there are many laboratories, it is better to buy a diamond valued by GIA or AGS. Very good quality diamonds in this category also have a high brilliance and scintillation, but with greater darkness in the middle or on the edges. The diamond pattern is also an important consideration. Sometimes a diamond can be top-notch in all other aspects except its pattern, which can be imperfect, resulting in a drop from the “excellent” rating to a “very good rating”. Unfortunately, many jewelry stores try to sell diamonds to their customers with IGI/EGL valuation reports. The rule of thumb is to avoid diamonds that have been evaluated by such labs and stick to GIA or AGS, as you can be pretty sure that your diamond will be valued accurately. If you`ve lost or never received a diamond valuation report, don`t worry. Some jewelry stores keep information about their customers` diamonds.
And some diamond labs write down report numbers on their diamonds, which can be seen under a jeweler`s magnifying glass. If neither option works, you can meet with a local jeweler to get a rough idea of the characteristics of your diamond. Diamonds are not certified; No lab would say they “certify” diamonds. Legally, this can cause them problems, and so they only confirm that they have evaluated a particular diamond based on their best opinion/rating as presented in the evaluation report. If you have a diamond in mind and would like an expert assessment of its certification, contact us. The main characteristics of a diamond that the system takes into account when assigning a class are: color; Clarity and production, consisting of cutting, polishing and finishing. There are five classes that can be assigned to a diamond after it has been classified by GIA: they only offer a grade cut in round diamonds. Even with round diamonds, our guidelines on ideal proportions for any shape are crucial, helping you distinguish between a super ideal size and an excellent average size. As you know, shiny earth diamonds are classified by IGI in most cases.
That leaves me with some confusion and concern. We also recommend buying james Allen diamonds. They sell IGI certified diamonds, but we divert customers from buying these special stones. AGS stands for American Gemological Society and is also a US-based laboratory (headquartered in Las Vegas). The AGS laboratory is recognized for its scientific approach and research in diamond sorting. Instead of using an alphabetical scoring system, AGS uses a scale from 0 to 10 to rate the characteristics of a diamond, with 0 being the best and 10 the worst. The American Gem Society is an organization of jewelers, suppliers, appraisers, and resellers. The company has been in existence since 1934; however, its laboratories – the American Gem Society Laboratories (AGSL) – were founded in 1996. They also have an Advanced Instruments Department, which was established in 2004. AGSL is the department that evaluates diamonds and has developed its own standards for this purpose. It is a close competitor to the GIA and enjoys a good reputation in the diamond industry.
Well, that`s just nonsense. If your jeweler doesn`t send their own stones to a specific lab and discover all the documents involved, they probably have no idea where the diamonds in their inventory come from. It is always interesting to note that GIA and AGS are the two most reliable evaluation laboratories with the strictest evaluation criteria. This ensures that you don`t pay too much for the diamond! Poor quality a Diamonds that fall into this category are those that have clearly defective properties. They usually have very low proportions and symmetry due to poor cut with very little shine or scintillation. In this category, you will find “nail heads”, where the stone has a black spot right in the middle. It will also have “fish eyes”, which means that the shine in the middle is completely faded. Again, the weight ratio of the stone is an important consideration. Gemological Science International was founded in 2005 and evaluates natural and lab-grown diamonds. Their labs use state-of-the-art technologies and instruments to capture the light power of a diamond, and reports include information on shape, weight color, clarity, fluorescence, polishing, symmetry, measurements, degree of cut, and graph. However, the truth is that jewelry store owners know very well that a diamond rated by GIA or AGS will have lower levels of color and clarity because GIA and AGS are stricter, which means that the company cannot charge as much money for the diamond. Do you still recommend lab diamonds even if the representation is assumed to be incorrect? Please note that we generally assume that there would be an inconsistency in HRD`s assessment regarding the classification of diamond color and clarity.
Please keep this in mind when buying HRD graded diamonds. I have never heard of them. Take what they rate and the documents they provide with a pinch of salt. For beginners, the AGS methodology may seem confusing, but once you get it figured out, it`s pretty simple. .