Thinking about buying a diamond ring? Make sure you understand the Four Cs—cut,...

https://wiki-global.win/index.php/Is_a_GIA_Report_Always_Required_for_an_Engagement_Ring%3F

Thinking about buying a diamond ring? Make sure you understand the Four Cs—cut, color, clarity, and carat weight—to know what you’re really getting. Check for a GIA grading report number for proof of quality