Diamond Education

The 4Cs Of Diamonds

This short tutorial explains the Four C's- cut, color, clarity, and carat weight - the most important characteristics of buying a diamond.

Diamond Cut


The most important of the 4Cs is Cut because it has the greatest influence on a diamond's sparkle.

Learn More About Cut 

Diamond Color


The second most important of the 4Cs is Color, which refers to a diamond's lack of color. The less color, the higher the grade.

Learn More About Color

Diamond Clarity


Often the least important of the 4Cs because the tiny imperfections are often microscopic.

Learn More About Clarity

Diamond Carat


The term Carat actually refers to the diamond's total weight and not its size.

Learn More About Carat

Diamond Shape


Each Fancy Shape has different attributes that affect price and quality grade.

Learn More About Shape

Diamond Certification


Unbiased diamond grading reports are offered with every Blue Nile diamond.

Learn More About Certification


As the largest online diamond retailer, Danisson offers the largest collection of the world's finest cut diamonds. Pre-selected for exceptional quality, the cut, color, and clarity of our loose diamonds are evaluated based on a standardized grading scale. Also, each loose diamond is accompanied by a grading report from either GIA , AGSL, independent diamond grading labs with the most stringent grading scales of all labs.

Conflict Free Diamonds

Danisson diamonds are ethically sourced with a zero-tolerance policy for conflict diamonds.

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