A Look At The Types Of Laboratories That Grade Certified Diamonds-mide-031

Fashion-Style When buying certified loose diamonds, many people think that the process involves simply selecting a pretty stone. However, there is much more involved with purchasing a quality stone than just looks alone. Professionals who work in the diamond industry know that the paperwork that ac.panies the stone can tell you a lot about a certified diamond’s color, cut, clarity and carat weight. However, with so many different labs certifying diamonds, sometimes it can be overwhelming to the average buyer. Why Use A Laboratory Why should you use a laboratory to grade your loose diamonds? It’s simple – the certified gemologists that work for some of the most famous and reputable laboratories certify gemstones for a living. They know exactly what to look for and can note any flaws. Additionally, they will be able to accurately grade a diamond’s color as well as determine whether it has been expertly cut. Most laboratories even hide the name of the owner to ensure .pletely objectivity and an unbiased report. Stick With The Best Laboratories In The Industry While many laboratories grade certified diamonds, there are five that set the standard. They are the Gemological Institute of America (GIA), the American Gem Society (AGS), the Hoge Raad voor Diamant (HRD), the European Gemological Laboratory (EGL) and the International Gemological Institute (IGI). The IGI uses a team of gemologists to grade each loose diamond. The team uses state of the art equipment such as an electronic balance capable of measuring the weight to a ten-thousandth of a carat, high-powered microscopes and a 10x magnification loupe. The team of gemologists at the IGI must agree on each diamond’s certification before a grading certificate can be issued. The EGL, based out of Belgium, is known for revolutionizing certified loose diamonds. Before the EGL, loose stones less than one carat weren’t considered for grading. Most recently, the EGL introduced the SI3 designation, which designates a diamond with visible inclusions under a 10x magnification. At least eight people, including four gemologists, review stones before they receive diamond certification. Also from Belgium, the HRD is considered one of the world’s most respected sources for certified diamonds. Several gemologists grade each loose diamond, never knowing who the owners are or the results of the other graders. The final grade requires a number of identical grades before it can be.e official. Additionally, senior gemologists randomly check the work and grading results daily to ensure the results are accurate. Lastly, the AGS is known for having some of the highest ethical standards in the industry. All of the AGS certified diamonds are graded on a 0-10 scale, with 0 being the best and 10 being the worst. Two different gemologists grade each stone before a report is prepared. The GIA – Setting The Gold Standard In addition to those laboratories outlined above, the GIA sets the gold standard when it .es to certifying and is considered the world’s foremost authority on diamonds. Originally founded in 1931, the GIA developed the International Diamond Grading System in 1953, creating uniform criteria recognized worldwide for grading each stone. Through this extensive system, two to five different gemologists personally review and apply a grade to each diamond. A stone’s GIA grade is only considered finalized when a sufficient number of gemologists agree on a diamond’s statistics. A GIA report includes the carat weight, measurement, culet and girdle thickness, color, clarity, a diagram of any inclusions, as well as the polish and symmetry. The final report ac.panies each of the stones, whether it is sold in a jewelry setting or as a loose diamond. What To Expect From Certified Diamonds If you’re buying certified diamonds, you can expect that you’re getting a quality stone. It also enables you to .pare different stones within the same price point, giving you peace of mind that you’re getting one of the best loose diamonds for your budget. Each diamond sold will .e with a detailed certificate or grading report. If the jewelry store claims a stone is certified, but it doesn’t have grading report information to share, you should move on to another store. Any retailer selling certified diamonds should be happy to provide the necessary information on each piece before you .mit to a final purchase. Choosing loose diamond to set into your own custom designed setting is a great way to ensure you’re getting a quality product. Additionally, after doing a little research into the certifying laboratories, you can be confident that you’re buying from a trusted source. About the Author: 相关的主题文章: