IGI grading reports play an essential role in the global diamond, gem and jewelry market, serving as the common language of trust and confidence in the gemological world. All Reports Colored Stone Report IGI analyzes every gemstone to identify species and variety, provide detailed information and...
钻石证书，也可以称作钻石分级证书（diamond grading report）、钻石质量保证书（diamond quality report），是对钻石以4C标准为基础[1]，是由珠宝专家们在特定的环境下依据严格的分级标准仔细观察和检测钻石从而形成的一份报告。其中将钻石置于十倍放大镜下分析它的尺寸、净度、切工、抛光、对称等特性是很重...
IGI develops the first comprehensive diamond cut grading chart 1986 - 1999 IGI is first to perform permanent inscription on the table of diamonds, using ion beam technology IGI Laboratories become fully equipped to identify any kind of synthetic diamond ...
Consumers will recognize the standard 4Cs used in diamond grading—cut, clarity, carat, and color—in the grading report, along with Charles & Colvard moissanite-specific grading measures. “Moissanite has long been celebrated for its brilliance and durability, but until now, consumers have not ha...
分享回复赞 北京积家售后服务吧 急流勇退一 积家服务中心在哪里—国际宝石学院(IGI) ——IGI钻石等级证书北京售后服务中心位于【北京市西城区西单大悦城写字楼7层702室 ★ tel:010-68143211】钻石证书 钻石证书,也可以称作钻石分级证书(diamond grading report)、钻石质量保证书(diamond quality report),是对钻石以4C标...
In summary, while both IGI and GIA are reputable certification organizations, they have some differences in grading standards, methodology, report format, and cost. Ultimately, the choice between the two comes down to personal preference and what is most important to the buyer. Which diamond certif...
Some big Indian lab-grown diamond companies no longer need to send their stones to an International Gemological Institute (IGI) office for grading. IGI India has established “laboratory setups” inside the factories of high-volume diamond growers, often using the producers’ employees and equipment...
This 1.27 carat Lab-Grown round diamond I color vs1 clarity has Ideal proportions and a diamond grading report from IGI DIAMOND INFORMATION Certificate View Report Shape Round Carat 1.27 Color I Clarity VS1 Cut Ideal Polish Excellent Symmetry ...
The International Gemological Institute (IGI) has completed its first Polished DiamondGrading class in Greece, jointly organized with well-known Greek gemologist and former IGI student, George Spyromilios. The six-day IGI Polished Diamond Grading Course was held November 14-19 in the center of ...
GIA is the most well-known gem lab in the world having created the basic grading system used by IGI and most other top laboratories. AGS has pioneered the evaluation of diamond light performance and as such an AGS report is the most sought after for diamonds of the highest cut precision, ...