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Diamond Education

Choosing the right diamond

For most people, buying a diamond is a new experience, but that doesn't mean it should be overwhelming. Understanding a diamond's quality characteristics is straightforward and simple.

Blue Nile's diamond education is designed to answer all your questions. It explains a diamond's characteristics, how those characteristics influence appearance, and which are more important than others. In just a few minutes you'll know everything you need to know to find your perfect diamond.

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WATCH THE GUIDED TOUR

Diamond Education: The Four C's

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

Shape

As the name suggests, shape (round, princess, radiant, etc.) describes a diamond's form, primarily as viewed from above. All diamond shapes have different attributes, but overall the beauty of the individual shapes is a matter of personal taste.

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Clarity

Almost all diamonds have tiny imperfections. Diamonds with few or no imperfections receive the highest clarity grades.

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Cut

The cut of a diamond determines its brilliance. Put simply, the better a diamond is cut, the more sparkle it will have.

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Carat Weight

This is the term with which people are most familiar, but bear in mind that carat is specifically a measure of a diamond's weight.

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Color

A diamond's color grade actually refers to the lack of color. In other words, diamonds that are white, containing little or no color, receive higher quality grades than those with visible color.

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Certification

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

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Quality

Our quality standards are among the highest of all jewelers. As the largest online diamond retailer, Blue Nile 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.

FAQ

Find answers to frequently asked questions about diamonds.

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Tips

Read our tips and hints for finding the perfect diamond.

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What Are Other Customers Choosing?

Visit our recently purchased page and see the engagement rings and diamonds other customers have recently chosen.

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Care

Read how to keep your diamond sparkling, and securely set in your ring.

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