Diamond certificates (aka grading studies) are issued by independent laboratories following a strict, protected strategy of diamond grading. During this portion We're going to offer information on one of the most identified gemological institutes running in The usa and, occasionally, around the world. As this announcement clarifies, AGS Labs merged https://cocoagriculture94714.bloggerchest.com/34665111/the-definitive-guide-to-igi-certificate-diamond