GIA has the strictest grading benchmarks and a longstanding name for accuracy, which makes it the benchmark for diamond certification. As this announcement clarifies, AGS Labs merged with GIA in late 2022 and can no longer provide new grading companies. Having said that, this information continues to be suitable for https://paxton36w12.blog-a-story.com/15609020/detailed-notes-on-diamond-certificate-igi