Diamond shape is not one of the 4Cs of diamonds, but that doesn’t mean it should be ignored. The shape of a diamond influences its brilliance, its color, its style, and even its price.

So, what is diamond shape? For diamonds, shape refers to the outline of the stone when viewed from a top-down perspective. Popular diamond shapes include round, pear, emerald, oval, and even heart. At Blue Nile, we offer diamonds in these and many other popular shapes.

Diamonds can add beauty and personality to engagement rings and other fine jewelry pieces, with specific shapes showcasing different styles. Take our diamond shape finder quiz to find the perfect diamond shape for your personality.

Diamond Shape Finder Quiz

1 / 9

Which bracelet type best fits your style?

2 / 9

Which type of jewelry metal do you like the most?

3 / 9

Which of these diamond jewelry styles do you like best?

4 / 9

The 4Cs of diamonds are cut, color, clarity, and carat. Which is most important to you?

5 / 9

Of the gemstones below, which do you like the most?

6 / 9

What is the most important diamond element for your dream piece of jewelry?

7 / 9

How would you describe your personal style?

8 / 9

Which of these would be your favorite everyday jewelry piece? 

9 / 9

Choose a necklace style.

Shopping for Diamonds at Blue Nile

Both natural and lab grown diamonds add special sparkle to jewelry. Whether they’re set on their own or paired with colorful gemstones, every diamond offers brilliant beauty to showcase your personal style. With an unparalleled selection of GIA-certified loose diamonds and high-quality jewelry styles, we have options for every style and budget.

Need help choosing the perfect piece of diamond jewelry? Visit one of our local jewelry stores or schedule your virtual jewelry shopping appointment to find your dream diamond style.

Related Reading

Engagement Ring Style Quiz

Wedding Ring Style Quiz

Gold Finder Quiz

How Lab Diamonds Are Made

Avatar of Blake Lapides
Blake Lapides Senior Director, Marketing
Blake Lapides is a GIA AJP (Applied Jewelry Professional) with 6+ years of experience in the fine jewelry and engagement business. He is a diamond enthusiast with a strong foundation in the 4Cs and a deep appreciation for how craftsmanship, cut quality, and design come together to create meaningful jewelry. Blake brings a thoughtful, detail-driven perspective to fine jewelry and a genuine passion for jewelry design, history, and modern trends.
All articles by Blake Lapides

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