7.2K views · 508 reactions | As the creator of the 4Cs – color, cut, clarity, and carat weight – GIA’s knowledge and expertise can help you as you are shopping for a diamond. You may be looking to buy loose diamonds, or practical tips on how to buy a diamond ring. Watch this video to learn about the benefits of a GIA report, while getting an extensive tutorial on each of the 4Cs. | 4Cs of Diamond Quality by GIA | Facebook

How do experts assess a diamond’s color? Although many diamonds appear colorless, GIA gemologists can detect even the slightest presence of yellow or other hues. GIA established the color grading standard, called the GIA Color Scale, to indicate the absence or presence of color. The scale begins with the letter D, representing colorlessness, and continues with the increasing presence of color to the letter Z. Diamond graders use color-comparison diamonds, called masterstones, to determine a diam