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.

Request a Free Diamond Buying Guide

Request a Free Diamond Buying Guide

 

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.

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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Diamond Clarity

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

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

Find answers to frequently asked questions about diamonds.
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TipsTips

Read our tips and hints for finding the perfect diamond.
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QualityQuality

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 or AGSL, independent diamond grading labs with the most stringent grading scales of all labs.

Blue Nile Diamond Standards

What Are Other Customers Choosing?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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CareCare

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