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

https://xeon-wiki.win/index.php/Ring_Resizing:_Is_It_Usually_Included_When_You_Buy%3F

Before buying a diamond ring, it helps to know the basics like the Four Cs—cut, color, clarity, and carat—to make sure you get what you expect. Check for a GIA grading report number to confirm quality