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

https://www.apu-bookmarks.win/before-buying-a-diamond-ring-it-helps-to-get-clear-on-a-few-important-things

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