IGI is widely used for lab-grown stones. The report is useful for consistency, but you should still verify the report number and compare the stone in hand.
At a glance
- Best for: lab-grown value comparisons
- What it includes: 4Cs, growth method, proportions, fluorescence
- Watch for: differences in grading strictness across labs
How to use it
Verify the report number, then compare cut proportions and clarity to other lab-grown options in the same price band. Ask the jeweler to show the stone in multiple lighting conditions to confirm sparkle and color.
If you are deciding between lab and natural, review the quickstart guide and set your budget and ethics priorities first.
