How to Measure Your Ring Size at Home — The KORITE Way

Shopping online for a ring should be just as seamless as wearing one. When it comes to a handcrafted KORITE Ammolite ring—each one made to showcase one of Earth’s rarest gemstones—the right fit makes all the difference.

This guide offers three simple ways to measure your ring size from home with precision and confidence. Whether you're investing in a signature piece for yourself or selecting a meaningful gift, this ensures your experience is effortless from the very start.

Why Accurate Ring Sizing Matters

A well-fitting ring is more than just comfortable—it’s one you’ll want to wear every day. Because Ammolite is a rare and one-of-a-kind gemstone, every KORITE ring is uniquely set. Getting the sizing right is the first step in making it your own.

Keep the following in mind before you measure:

• Measure more than once. Fingers can swell or contract depending on time of day, hydration, or temperature. Measure at least twice for accuracy.

• Take your knuckles into account. If your knuckles are wider than the base of your finger, consider going up half a size to ensure a comfortable fit.

• Understand the US ring size system. Sizes typically range from 3 to 14, with half sizes in between. For example, a size 7 measures approximately 17.3 mm in diameter, while a size 10 measures 19.8 mm.

Three Ways to Measure Your Ring Size from Home

1. Use a Ring That Already Fits

If you have a ring that fits well, use it as a reference.

• Download and print a ring size chart.

• Place your ring over the circles to find the size that matches the inside edge.

• If your ring falls between two sizes, select the larger one for comfort.

2. Purchase a Ring Sizer

A plastic ring sizing tool offers one of the most accurate ways to measure. It's inexpensive, easy to use, and ideal for anyone who plans to purchase multiple rings over time.

• Slip the sizing tool onto your finger and adjust until it fits snugly.

• Record the size indicated at the fitting point.

This small tool ensures peace of mind when selecting high-value jewellery online.

 

3. Measuring Your Ring with String

This classic at-home method requires only a piece of string and a ruler.

• Wrap a length of string around the base of your finger.

• Mark the point where the string overlaps.

• Measure the marked string in millimeters.

• Compare your result to a standard ring size chart. Ring sizes increase by about 0.4 mm with each half-size increment.

Between Sizes? Here’s What to Do

When in doubt, opt for the larger size—especially for wide bands or when knuckles are a consideration. Ring fillers/adjusters can also be purchased by third-party retailers to help if your ring is slightly larger. 

If you're still uncertain, our Customer Care Team is available to provide one-on-one guidance on sizing and fit, so you can purchase with confidence.

Discover the Perfect Fit

Each KORITE Ammolite ring is a celebration of colour, energy, and time. Made in Canada and ethically mined by KORITE in Alberta, our rings are timeless pieces that carry a powerful natural history.

Explore our most-loved designs and experience the difference a perfect fit makes: Shop Best-Selling Ammolite Rings.

Ready to Get Started?

Begin by measuring your ring size at home. With expert craftsmanship, a range of styles, and our commitment to customer satisfaction, your next ring will fit beautifully and last a lifetime.