Before buying a diamond ring, it helps to know the Four Cs — cut, color,...

https://griffinsinterestingperspective.opalvector.com/posts/what-paperwork-should-say-lab-grown-diamond-clearly-a-buyer-s-guide

Before buying a diamond ring, it helps to know the Four Cs — cut, color, clarity, and carat — so you get the best value for your budget. Check for a GIA grading report number to confirm quality and authenticity