THE QUICK & EASY 4C’S LEARN THE 4C'S OF DIAMONDS FAST! Posted on November 17, 2022 by Richard Scott Diamond Certification Certification matters! A lot! If you’re buying a single diamond, make sure it’s GIA certified. This is a MUST! And finally, one last HUGE TIP: Diamond GradingDiamond QualityDiamondsLearn about DiamondsThe 4C's Previous Next