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GIA 4Cs Diamond Blog

The Timeless Intrigue of Colored Diamonds

October 8, 2013

As the creator of the 4Cs and International Diamond Grading System, GIA also established color grading standards and terminology specifically for colored diamonds, based on the color’s hue, tone, and saturation. Today, we identify some of the defining characteristics that help make fancy-color diamonds a true feast for the eyes. (more…)

4Cs Q&A with GIA: Diamond Cut Grading

August 5, 2013

Next up in GIA’s 4Cs Q&A series is diamond cut grading. (more…)

Popular Setting Styles

March 8, 2011

Solitaire Setting

Solitaire Setting is a popular diamond engagement ring setting. The head secures the diamond. The prongs allow the diamond to catch the most light. A four-prong setting shows more of the diamond, but a six-prong setting is often more secure. (more…)