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Build Your Own Earrings®

Build Your Own Diamond Pendant®

Build Your Own Three-Stone Ring®

Build Your Own Diamond Jewelry®

Create a personal piece of jewelry by combining brilliant diamonds with beautifully-crafted settings to design your own diamond ring, earrings, or pendant.

BUILD YOUR OWN DIAMOND JEWELRY

BUILD YOUR OWN ENGAGEMENT RING

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The perfect fit deserves the perfect ring.

Need it expedited? Our free ring sizer uses standard business shipping; expedited delivery is also available for fifteen dollars. Click here to get expedited delivery.

*We provide free resizing for most of our engagement rings and wedding bands within the manufacturer's recommended sizing range, during the first year.

What if I order the wrong size?

Don't let the question of size stress you out. Blue Nile provides complimentary resizing for most engagement rings and wedding bands within the manufacturer's recommended sizing range, during the first year. If you need a different ring, we offer a 30-day exchange policy for your convenience.

Some of our ring styles cannot be resized due to their design. In these cases, an cannot be resized icon will appear on the product detail page under the ring size selection.

For example, diamond and gemstone eternity rings with a specific number of gemstones per finger size, milgrain or ornate bands, silver rings, or rings with alternative metals such as Tungsten cannot be resized.

We are happy to exchange your ring for another ring in the correct size within 30 days of purchase. It is important to note that should you opt for an exchange, your new ring may contain fewer or more gemstones, diamonds, or a reduction or increase in precious metal weight, which may cause an increase or decrease in the price.

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Blue Nile offers free resizing & exchanges so you can buy with confidence. Learn More >

Craft your own ring sizer with a strip of paper (or string or floss):

1) Wrap around the base of your finger

2) Mark where the end meets

3) Measure to the nearest mm

4) Use our size chart to find the size

How To Measure Ring Size With Household Items

  • If the measurement falls between two sizes order the larger size.
  • When the knuckle is bigger than the base of the finger, measure both places and pick a size in between the two.
  • Measure ring size at the end of the day when your fingers are warm. Finger size changes depending on the time of day and the weather, and your fingers are actually smaller in the early morning and in cold weather. Also, keep in mind that fingers on your dominant hand are usually larger.
  • Measure 3 to 4 times for more accuracy.
  • Common ring sizes for women are 6, 6.5, and 7. For men, common sizes are 10, 10.5, and 11.

How To Measure Ring Size

We'll Mail You A Plastic Ring Sizer

We'll Mail You A Plastic Ring Sizer

OR

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Standard 5-7 day shipping

2-day shipping

In a super rush? You'll also have the option to choose overnight.

Read why our customers love it.

View Printable Ring Size Guide

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View Size Guide >

View Printable Size Guide

Measure Your Finger

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Measure Your Finger

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Choose your method

Education  >  Ring education  >  How to measure your ring size

Rings That Can't Be Resized

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VIEW SIZING OPTIONS >FIND YOUR PERFECT FIT >

Find the perfect ring.

Whether it's an engagement ring, a wedding band, or a special gift, we are here to make sure it's perfect.

I've found the perfect ring.

Here are a few options you can use if you're in a time crunch or to supplement your ring sizer.

Diamond Education

Ring Education

Engagement Ring Guide

Wedding Ring Guide

Jewelry Education

Men's Wedding Rings

Wedding Ring Styles

Ring Size Guide

Metal Education

Gemstone Education

How To Measure Ring Size

Choose your method

Education  >  Ring education  >  How to measure your ring size

More Education & Guidance

Diamond Education

Engagement Ring Guide

Wedding Ring Guide

Metal Education

Gemstone Education

Ring Guide