If you only remember one thing, remember this: the grading lab matters almost as much as the diamond.
For natural diamonds, GIA is usually the safest, most trusted grading standard.
For lab-grown diamonds, IGI is the most common and practical choice for consistent reports.
IGI acquires AGL for $13M. The move expands IGI’s reach into colored gemstone certification and hints at growing consolidation among global grading labs.
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